336781 bbc heads


336781 bbc heads Part 6272292. I just did one like that with 781 heads and will hopefully have it running very soon . GM Big Block Chevy BBC 396 454 781 Oval Port Heads 336781 Stock. Casting number 336781 reveals a 1973 1984 oval port open chamber 454 iron cylinder head with standard 2. Feed your passion for racing and high performance and get maximum output from your engine. intake 10 1 CR 781 ported polished Oval port heads with 2. 1 214. They 39 re fully assembled with valve springs retainers locks guideplates studs and seals. Here 39 s my build 336781 1973 85 454 Open 113cc . 454 7. 00 quot 39 55 39 57 gen. 00 Bbc roller lifters stud girdles US 225. 14011034 heads in California at AmericanListed. 1. 049 heads are also good. com 1932 Ford roadster project 1932 Ford three window coupe project Big block Chevy engine projects Chrysler Hemi engines Corvettes Muscle cars Race car design software Racing engine builders Aluminum heads with casting number 3919842 were factory cylinder heads for L89 and L88 engines. Exhaust Gasket Fel Pro 375 1410 or engine suffix code FORD mustang CHEVROLET camaro Z28 corvette mustang mach1 carburetor holley identification Gm Big Block Chevy Bbc 396 454 781 Factory Large Oval Port Heads 336781 1966 3904390 Heads 475. This procedure was seen as something of a black art best left in the hands of the greatest of gearhead alchemists. Category Cylinder Heads. 343772 1976 84 366 427 454 Open . BBC 336781 Heads Building a 468 going in an 84 Chevy Pickup 454 bored . 88 0 Dated K 21 66. its for sale. I ran cast number 336781. 06 1. 29 Jul 2009 C3 Tech Performance bbc heads cast 886781 Can someone tell me if 125. 815. All these are identified here. One the other head the 39 s are GMOT or GM0T 336781 28 74 on the back it says pass 781 and 10. 020r. 7 quot rod 265 3. If this info is totally unobtainable without CC 39 ing the heads then that is what I will do but it will take time that I really don 39 t have because I have to get I don 39 t the Edelbrocks heads I would go with a AFR 39 s that small of a motor you don 39 t want a crazy big head anyway. Big Block Chevy Rectangular Port Heads 3873858 1966 396 427 Complete No Porting. 12 Feb 2017 Here 39 s a pic of one of the original cylinder heads from my Chevelle. 99 GM 336781 Chevy BB Oval Port Cast Iron SINGLE Cylinder Head Dated C Used 336781 BBC Heads w rockers 1973 85 Oval Ports 118cc Chamber 256 114cc 200 Used MSD Magnetic Pickup Tach Adapter 8920 40 Used Edelbrock 2725 Torker SBC 85 Used Derale Remote Dual Oil Filter Mount With AN Fittings 25 Used CSR 835 CSR Ultrashield Flexplate Shield PG amp T 400 50 1967 67 Corvette Chevelle Camaro Nova 2. 00 Stroke 113 Cyl Head Volume 4. Thread reach does vary but the two most common flavors are May 09 2012 OEM bbc heads Engine Building Hi Performance OEM bbc heads TriFive. 75 that is stock. Feb 06 2011 Big Block Chevy Heads If this is your first visit be sure to register . Open chamber. Clear Coat. Best heads for 454 bbc Nova SS Camaro SS 396 454 427 Chevy big block cylinder head casting codes. 1 shows the location of the HEAD CASTING NUMBERS and the HEAD CASTING DATE located under the valve covers in the rocker arm valley. 99 Camaro Corvette Cts v Ls6 Bbc Chevy. 336781 39 s are 1975 low performance smog heads used in the 454 215. 97. Body exterior body trim Component Weight Accuracy Ref. Find 454 Big Block Heads in Canada Visit Kijiji Classifieds to buy sell or trade almost anything Big Block Chevy Stock Heads BBC Edelbrock C454 intake. If you 39 re looking at the engine code this is already known. BBC 1970 Oval Port 290 heads CC size etc. C 28 7. 043 rings the list goes on and on. htm 336781. 22 IMO unless you are after high RPM 6 grand amp up look for a set of 39 049 or 39 781 castings or go for a large oval port aftermarket consider at least having the large factory valves put in the oval port heads 2. Valves 6 Intake Valve. The other BBC oval port cylinder head casting numbers. 115cc. 00. 5 1. For the life of me I cant remember what year chevy changed to harden valve seats for unleaded fuels. 72 exhaust. There are also quot semi closed quot chamber heads like the c n 215 heads. The numbers on the front engine plate are AS919 and T61521098 it may also be I51521098. 06 intake and a 1. casting 336781 73 85 454 118cc chamber 256 114cc ports 1967 Block. By popular demand I attempt to give some good insight and info on Big Block Chevrolet Heads May 20 2015 If you are looking for a set of oval port heads look for the following casting numbers 336781 353049 3992241 and 3993820. Bbc Chevy Cylinder Heads 396 402 427 454 502 Gm 14092360 Camaro Chevelle Vette . 88 exhaust Re Max Valve Lift of Stock 39 74 454 BBC Heads 336781 12 31 05 03 32 PM Post 843797 In response to TriFiveChevyJohn 39 74 39 73 thru 39 75 stock cam specs are for . With 10114156 heads. 250 Bbc Chevrolet 396 427 454 496 502 540 Aluminum Heads 320cc Rectangle Port 2. 00 781 Heads . But usually what you 39 ll hear is quot open quot or quot closed quot chambers. 0 cc Gm Big For Sale Online. 020 Deck Clearance 0. Ok Im starting to loose my nerve here Was there 2 different casting numbers for the 781 heads Im all worked up now about the short valve nbsp Find many great new amp used options and get the best deals for Big Block Chevy 454 BBC 336781 Cylinder Heads Pair Original GM 819 at the best online prices nbsp 25 Dec 2010 Details for 336781. 4 563 Posts. 343771 1968 85 366 427 454 2. 88s with the pocket porting and intake gasket match and hang on. its going into a 86 Mar 24 2004 but heres where it gets crazy i find a complete bbc for 300. 96 up. 1969 Bbc . Make an offer The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head. Big Block . 452. hello I have a gen IV 454 bored 30 over stock stroke with dome piston head volume of 27. 2 to almost 9. 4 L 1970 1980 Bb 461 BBC TH400 B amp M TRANSPAK Hooker headers 3 quot dual exhaust h pipe Hooker mufflers Vic Jr. 11 hours ago Free shipping on many items 781 Heads 396 427 454 468 496 502 BBC GM Big Block Chevy Heads 336781 625HP. Big Block Chevy Rectangular Port Heads 3873858 1966 396 427 Completely Rebuilt. 060 4 bolt main with stock crank and rods with flat top pistons and a set of ported 781 39 s cut for 2. 1968 Big Block Chevy Bbc 396 427 Rectangle Port 840 Heads 3919840 D 22 8 D 23 8. Consult with engine builder. The period in question actually began in October 1973 when OAPEC the Arab members of OPEC the Organization of Petroleum Exporting Countries plus Egypt Syria and Tunisia proclaimed an oil embargo against the United States after the United States came Pair 69 70 396 427 454 Cylinder Heads 3964291 Corvette Chevelle 375 L78 Ls6 F 9 Vintage Weiand 1 495. 1l 496 2 Big Block Chevy Marine Cylinder Heads 12558162 Oval Port Gen Vii 2001 Big Block Bbc Chevy 454 496 300cc Oval Port Aluminum Heads Assem. B What will my final CR be with Wiseco piston 5039H6 38cc dome using Brodix Race rite 115cc chamber heads. 78 75 pr. 250 4 bolt main tall deck truck 345014 1974 86 454 4. 19 intakes and 1. They Have been hot tanked cleaned magnafluxed for Cracks and also cked for straightness and are Good Heads. If you don 39 t know where to look on your engine nbsp 336781 73 85 oval OPEN 454 118cc chamber 256 114cc ports. 06 in 1. Jan 14 2020 Engine Build 620 HP 454 Big Block Chevy Part 3 Oval Port Head Core Selection Before Porting Duration 17 59. to make that kind of rpms you could cut your impeller to a b cut but then you loose hole shot unless you have a beast that has some good 60 69 352 . RECTANGULAR PORT Valve size 2. 430 exhaust lift. They were used on the 402 and 454 engines in Camaro Nova Chevelle and Monte Carlo. Gm Big Block Chevy Bbc 396 454 781 Factory Large Oval Port Heads 336781 Big Block Chevy Bbc Dart 310 Heads 454 496 502 540 Dart Pro 1 2 300. Browse 1970s Chevrolet Oval in stock and ready for shipping right now 1965 1966 Big Block Chevy Bbc 396 427 Oval Port Heads 3856206 206 H 3 5 H 19 5. 4L 454 Cylinder Heads with Cast iron Cylinder Head Material and get Free Shipping on Orders Over 99 at Summit Racing MERLIN BBC rectangle port This set of heads came off an engine that I rebuilt for a guy after he was sold a quot 9. These heads come in port volumes of 238cc 243cc and up to a monstrous 247cc volume. K 26 73. Aug 29 2020 Greetings all. 343771 1968 85 366 427 454 Open . And for about 10 000 you can choose across three different Oct 01 2005 The head was cut to hold a 2. Fel Pro 375 1211 or equivalent for rectangle port head. BBC heads i have listed ar 336781 havent decyded price on them yet offers or will post soon. 88 Valves with moderate Bowl porting. Big Block Chevy BBC 396 454 Open Chamber Rectangle Port Heads BBC oval port cylinder head casting numbers Number Engine Size Year Combustion Chambers 336781 454 1973 1985 Open chamber 346236 454 1975 1978 Open chamber Pushrod Guideplates BBC Stepped 3 8 39 39 Spark Plugs Accepts 14mm . The top head is the 39 lower horsepower 39 version 300hp and under used on 67 68 327 applications with 1. 343771 68 86 oval OPEN 366T 427T 454. 1pair BBC heads cracked check decked new bronze guides some exast bowl work hard 1. favorite this post Aug 28 16 19 ford explorer radiator support 200 russell springs pic hide this posting restore restore this posting. 1967 Big Block Chevy Bbc 396 427 Oval Port Heads 3909802 802 B 14 7 B 22 7 For Sale Online. WORLD 1971 1972 Big Block Chevy 402 454 Oval Port Cylinder Heads 6272292 292 Bbc Heads. Chevy Grill Grille 1949 1950 1951 1952 Original Inquire 4 Proper Shipping Rates. 2 450. It had a 4. 300 to get more material to shape in the bowl area and valve job areanot necessarily to hog out the Port but instead to shape the Bowls and short turn curve better. 2 500. it s a gen 6 4 bolt main motor with square port LS 7 heads . I just picked up a set of 336781 cast iron heads with 2. 50. heads. Gm Big Block Chevy Large Oval Port Heads 3872702 1966 396 325hp 360hp 427390hp . 336781 1973 85 454 2. GT 40X quot Turbo Swirl quot Alum Cyl Heads DR14YS DOR14LGS DR14ZC quot Sportsman quot Short Track Cast Iron Cyl Heads HR14YS HOR14LGS HO14LGS quot Z quot Aluminum Heads DOR15LGS Robert Yates Alum. 5 1 cr mild cam exhaust and intake Bbc Chevrolet 396 427 454 496 502 540 Aluminum Heads 320cc Rectangle Port 2. 00 62. 70 gears Griffin aluminum rad Spahl 16in Electric fan. 343771 1968 85 366 427 454 Open . I assume this one is a 1977 this one is 2 bolt and has a 4. 781 Heads 396 427 454 468 496 502 Bbc Gm Big Block Chevy Heads 336781 Find bbc heads used and bbc used aluminum heads from a vast selection of Parts amp Accessories. mortec. rect . 7l 4 bolt Block Wcaps Std 4088548 Wd. These cylinder heads meet GM s stringent quality standards and provide excellent service and durability not found in used cylinder heads. 250 Discover Bbc 454 Heads on sale here with the biggest variety of Bbc 454 Heads anywhere online. I didnt pull the heads off but could see that it is a flat top engine and probabaly 9 1 compression. casting 3902406 i wanted to ask the the community here is there any thing at all i should know or consider b4 i buy this motor. these are bare heads that were supposedly magnafluxed and found to be in good shape. 02 intake and 1. 396 454 Big 336781 Bbc Chevy Block Stock Port Gm 781 Oval Heads 425. 73. Peanut port heads came with slightly domed pistons primarily to compensate for their enormous 113 cc combustion chambers . 336781 . 1969 Bbc Big Block Chevy L88 Zl1 427 Rectangle Port Intake 3933198 198 . 343783 nbsp 4 Nov 2004 I know a guy at work who has port matched polished his heads with hand There are three or four 454 quot truck quot heads. 6 1 compression quot engine that turned out to be more like 12 1 and burned some pistons after only a few hours use. 6 valves 336781 454 73 85 Oval Port 343771 366 454 68 85 Truck HD Discover Bbc Oval Port Heads on sale right here with the biggest option of Bbc Oval Port Heads anywhere online. Americanlisted has classifieds in Los Angeles California for nbsp 28 Jun 2013 Big block Chevy heads 1 Chambers 2 Exhaust valve guides 3 BBC L29 Vortec heads 336781 336780 39 74 454 270 HP 113 2. L88 Zl1 . Large being the better choice. Big Block Chevy Short Water Pump Chrome Alternator Bracket Bbc Swp 396 Cylinder Head Outboard Or 1973 Head Johnson For Motor Evinrude 317850 Port Cylinder 115 Hp Cylinder Head . This one appears to be in good shape but it likely needs crack checking pressure testing new seats and guides and surfacing. The heads currently on the motor are initial peanut port heads casting 346236. 1l 496 599. GM body designation. 00 Mercruiser Chevy Gm12t Big Block 454 Cylinder Head 336781 W Springs. VALVE STEM OIL SEAL TO SPRING CLEARANCE Shop our sizable collection of bbc oval port intake or try a simple search for a more particular bbc oval port intake using the search. F 7 72. This engine used oval port cylinder heads and dished pistons almost exclusively after 1984 prior applications could use either oval or casting number 236 quot peanut quot port heads. 00 Sep 10 2017 6. will this intake fit 336781 bbc heads. 675. is too large for the spring seat O. The cast iron heads are at the Find bbc oval port heads from a vast selection of Automotive. DART BIG CHIEF Chev BB V8 18 O 424cc Program 381 new never run BPE Stage II ported w new Manley S Steel valves 2 pair available click here Big Chief Heads for more info each pair a 4400 value BEST OFFER. 671 quot x 3. 251. 021. 336781 is designated as open chamber 113. 1969 70 Chevy Caprice Impala Power Steering Gearbox Conversion Kit 402 bbc build At least 500 lb ft from 2 800 rpm up. Aug 29 2020 BBC 336781 Heads Building a 468 going in an 84 Chevy Pickup 454 bored. Sep 26 2013 Oval port head casting numbers Rectangular port head numbers Big block Chevy valve covers Big block Chevy resources Some related pages on Roadsters. Impala 396 corvette 1969 Harrison EBA 70 69B 427 Decal Evaporator AC nova Box Box nova AC Impala 427 Decal EBA 70 69B 396 Evaporator 1969 corvette Harrison. 880 quot exhaust valves. I had the motor I 39 m going with a BBC amp the T56 6 speed manual transmission. 77 open chamber oval port Nov 18 2007 Keep in mind there are two types of ovals ports also. 781s they come With 2. 1 969. Rectangular port 121 cc chamber . Chevy Bbc 454 320cc 119cc Hydr r Complete Aluminum Cylinder Heads. or 049s I honestly wouldn 39 t put money in any other factory oval port BBC head. Big Block Bbc Chevy 454 496 300cc Oval Port Aluminum Heads Assem. More Details. We sell stock performance amp marine engine parts. Number Engine Size Year Combustion Chambers 336781 454 1973 1985 Open chamber 346236 nbsp BBC heads rectangular and oval port maintained the 118 cc combustion chamber that is until the 7400 Vortech was introduced which uses nbsp Ls7camaro wrote The 781 heads are they oval or rect port How are the GM 990 39 s http www. 398 intake and . U probably need to rebuild the 850 Holey Carb. Type Big Block V8. 60 valves Victor Jr. ProMaxx heads have started a revolution in the performance world. Mazda MX 5 Miata. 454. The enhanced cam we got from Aug 12 2010 chevy v 8 bore and stroke list chevy smallblock v 8 bore and stroke 262 3. Info Shop our sizable collection of bbc oval port intake or try a simple search for a more particular bbc oval port intake using the search. 5L 4 bangerobviously never owned one or drove one. Big Block Chevy Bbc 396 454 Open Chamber Rectangle Port Heads 6272990 990. 00 1968 Corvette 427390hp Aluminum Intake 3919849 Oem Gm Oval Port Q Jet Carb Rare Chevy cylinder head Identification Small block casting numbers Big block cylinder head camel back heads double hump heads 336781. 1 Pair Fel Pro 10171 Big Block Chevy Bbc Head Gaskets Mark 4 366 396 427 454. 5 . 19 and 1. Open Chamber Heads. Bbc Marine Stainless Cmi Headers Exhaust Bbc 502 454 Big Block Chevy . 02 1. Aug 28 2020 Stainless Marine Exhaust Manifolds Risers Mercruiser Bravo Bbc 7. 250 346236 1974 76 454 4. Shipping 266. 10 cc . 030 427 with a solid flat tappet in a Pro street Vega first pass on it was a 9. Head casting 336781 Block casting 361959 It will be connected to a th400 and 3. 88 quot and put an apropriate set of pistions under them to get to a ballpark 10 10. Cyl Heads L style sparkplug 13 16hex 14mm gasket quot High Port quot Yates Head L style sparkplug 13 16hex 14mm gasket High Port Head for all out Performance Bbc heads blank 300 a set valve job 650 a set many castings available 336781 353049 343772 346236 and many others call or text show contact info. The intake is the initial quadrajet intake casting number 465839. Jun 18 2005 So After taking my heads to the machine shop they pretty much laughed and were surprised at what I was running on my boat. If you could run alum heads you should at least for the weight savings alone. Chevrolet 4G LTE and available built in Wi Fi hotspot offers a fast and reliable Internet connection for up to 7 devices includes data trial for 1 month or 3GB whichever comes first Available Wi Fi requires compatible mobile device Aug 29 2020 Review Subject 8. Bbc oval 274. 336781 made between 1973 and 85. 100 BBC 454 496 1 830. V Gen. 36 Bbc Brown Boveri Hesg 216077 R1 Aat 463 s He885391 31109 Hesg 216083b Var. 1966 Big 575. 2 Aug 19 2011. 343771 nbsp Chevy casting numbers for blocks and heads for big block V8 engines. Bbc Chevrolet 396 427 454 496 502 540 Aluminum Heads 320cc Rectangle Port 2. 00 1970 1980 Bb Chevy Reground 454 3967416 7416 Forged Crank . car amp truck. I looked up how much HP it 39 s rated and it most web site say 230. . 00 1966 3904390 Heads Corvette 427 Chevelle Bbc Ss L36 L68 396 454 99cc K 16 6 390 heads. 07 geared rear end. 336781 1973 85 454 Open 113cc . 95 Mercury Outboard Transfer Port Cover With Fittings Application Block Cylinder Head Intake Exhaust left Exhaust right 350 300 HP early Base 3932386 3927186 3927184 3872765 3932461 350 350 HP early L46 1956 Corvette 495. 29. Can send video if interested. Small and large. Castings say it came out of a mid 39 70s big car caprice impala etc block casting 361959. Chevy Bbc . 0 cc. For sale is a 454 Chevrolet big block. 50 exhaust while the bottom head is the performance version 325hp and higher used on 67 68 327 applications with 2. CC is 116 118 stock. C 27 73. com Amarillo TX 6 12 2020 781 Heads 396 427 454 468 496 502 BBC GM Big Block Chevy Heads 336781 625HP 325. Gm Big Block Chevy Bbc 396 454 781 Factory Large Oval Port Heads Chevy Bbc 1 099. The largest Edelbrock head series includes the Edelbrock Chapman Victor 23 degree High Port CNC heads. 7 Marine Engine Master Rebuild Kit Rev Rot 2pc Whether you are an engine builder drag racer circle track racer boat racer road racer or a hobbyist doing a classic Chevrolet restoration Mortec has information you can use starting with our ever popular Chevy casting number lists for small block SBC big block BBC and 348 409 V 8 engine blocks cranks and heads. Oct 20 2006 well frist off to spin those type of rpms you need some big horse power your head are as follows 336781 made from73 85 oval port open chamber 118cc chamber 256 116cc ports thats your specs for your heads . BBC Cylinder Head Casting Numbers RECTANGULAR PORT Valve size 2. Matching production dates for Block Heads and Intake March 1974 Casting numbers Block 3999289 Heads 336781 Intake 338789 Includes Distributor Favourite Aug 20 2020 On cast iron heads with integral guides the repair alternatives for worn guides are to install guide liners or to ream out the old guides and use new valves with oversized stems. 250 pr. The heads are GM Cast 336781 hich are some of the best heads before going to aluminum aftermarket. Cool 396 375 L78 engine for your Chevelle. ALMOST ALL lists that I have found say these are 113cc. square body bbc headers 150. 280 Bore 4. 1970 Chevrolet 454 Ls6 Trw Forged Pistons And Connecting Rods 716 Bolts Real Used normal wear GM 1975 BBC 454 with two bolt main cap was rebuilt at some point block 381959 heads 336781 cast crank 353039 4. 336781 HEADS 1973 to 85 including 7 ex. 997. Jul 27 2009 hello i have a bbc that i was wanting to find out just exactly it was. 2 239. The usual problem is the spring O. Jun 18 2020 CYLINDER HEADS. 88 valves 750DP Holley Holley 110gph mechanical fuel pump Comp Solid Cam 256 264 50 4000 stall Ford 9 quot 3. Bbc heads blank 300 a set valve job 650 a set many castings available 336781 353049 343772 346236 and many others call or text Bbc heads Arlington 300 Nice set of World Products International BBC Grumpy Jenkins Aluminum Heads. 88 exhaust Casting Years CID Chamber HP RPO Comments 3904392 1967 427 Cylinder Head Stud kit for Chevy Big Block BBC 75 PCE279. 7 Marine Engine Master Rebuild Kit Rev Rot 2pc Presenting 1970s chevrolet oval available now online. I 39 ve got 4. 2 Hi Perf BBC Heads . A Thank you for your question. 60 Heads 3890462 L79 327350 462 Heads 1967 67 Corvette Camaro Chevelle 462 327350 3890462 L79 2. 900. Original Gm 3933198 Big Block Chevy Aluminum Intake 68 69 L88 Zl 1 427430hp Wow. . 23 on motor. 00 400. Date 1973 1985. 00. This is especially true when going from stock single springs to high performance dual or triple spring designs. Expect to pay a lot of money if you even find a usable pair. 1968 Corvette 650. 19 and 1. I was thinking about a edelbrock performer cam but have heard that the comp cams 268 is also a good choice please let me know what you think. 62. Engine. 1956 Corvette Chevrolet Small Block Chevy Sbc 265 Long Block 3720991 K 11 5 One the other head the 39 s are GMOT or GM0T 336781 28 74 on the back it says pass 781 and 10. The quot bigger is better quot approach espoused by old school mechanics actually can 1966 Oval port head notice tapped bosses for spark plug shields. I dont have different cast numbers at the moment but a good way to check is you should be able to put 3 fingers into the large oval port head. SOLD FROM 1978 85. Mar 01 2008 Check out this 496 Chevy Big Block Engine get tested with Edelbrock Performer RPM Cylinder Heads and Dart Cylinder Heads other cylinder heads are TFS Brodix GM and Pushrod Featured in Car Craft Details This Auction is for a Set of GM part 336781 Big Block Chevrolet Heads. Casting 10114182. I guess these are the true oval ports. You might just port the heads you to there good power alot cheaper than new heads. Chevy Bbc 454 360cc 125cc Cnc Solid ft Complete Aluminum Cylinder Heads. They have custom designed a head to meet the demands of the Big Block Chevy world while keeping the quality high and the price reasonable. 3856206 3872702 3904390 3917215 3919840 3931063 3964290 3993820 3999241. The code is usually found on the top of the head in between two valves and the rocker arm studs. 1995. Aug 20 2012 If it were me I would not drop the mega bucks on Edelbrock heads. 06 1. Of course guide liners or oversized valves are also options for aluminum heads with guides too. 27. If you don t pay attention it s very easy to install the wrong spark plug. 72. Our site has access to hundreds of thousands of listings from retailers online so we just might have just what you 39 re searching for Buy bbc oval port intake today Find Bbc Oval Port Intake for sale. 00 1971 Big Block Chevy 402 454 Oval Port Heads 3993820 E 11 71 E 13 71 Chevrolet Find CHEVROLET 7. 1968 Big Block Chevy Bbc 396 427 Rectangle Port Heads 3919840 840 D 3 8 D 23 8 Head casting 336781 Block casting 361959 It will be connected to a th400 and 3. 14044861. 72 Open 113. 31. Big Block Chevy Cylinder Heads BBC Cylinder Head Casting Numbers RECTANGULAR PORT 336781. 99 Oem Mercruiser Mercury Cylinder Head Gasket Mcm 4. 58. 346236. 17 Aug 2005 336781 made between 1973 and 85. 1971 71 Big Block Chevy Ls6 454 Rectangle Port Closed Chamber Heads 3964291 291 1971 Big . 336781 73 85 truck Cylinder head porting refers to the process of modifying the intake and exhaust ports of an internal combustion engine to improve their air flow. This head certainly has 500 hp plus capability and would be an excellent choice on a mid sized small block around the 383 or 406ci. casting 336781 open chamber dated h 21 73 these are not Los Angeles California Car parts 400 The finest remanufactured amp rebuilt stock replacement OEM engines cylinder heads amp crankshafts. WTF BBC heads 336781 386781 Help experts please Discussion in 39 Engine Topic 39 started by badazz81z28 Jun 1 2005. Get great deals on eBay GM Big Block Chevy BBC 396 454 781 Oval Port Heads 336781 Stock. Click here for more details or check nbsp 16 Jun 2017 It currently has peanut port heads but I am looking that are closed chamber 109cc or a set of 336781 heads that are open chamber 118cc. Also 86 Z28 mods include 383 w Dart Pro 1 Alulminum Heads 215cc 2. anyone know valve sizes and weather they 39 ed be good street performance heads when equiped item 6 781 Heads 396 427 454 468 496 502 BBC GM Big Block Chevy Heads 336781 625HP 3 5 781 Heads 396 427 454 468 496 502 BBC GM Big Block Chevy Heads 336781 625HP 3 325. 78 amp B. I have a buddy who has them on a 454 and he says his 781 39 s are right there with them. I plan on swapping the heads for some older retangular ports and do the rest of the stuff you would do to an older engine. 125 inch bore and a 3. 1971 Big Block Chevy 402 454 Oval Port Heads 3993820 E 11 71 E 13 71 Chevrolet Chevy Top . i 5. is too small for the stock valve guide O. 7 mercury racing mercury chevrolet sbc mercury racing mercury boat engine motor big block chevrolet Bbc blocks short blocks 400 heads 600 block call 519 385 0426 or txt thanks like us Amarillo customs and performance facebook short bus email may be deleted Bbc Marine . To prevent spam we require users to register before they can post please click register to proceed. i have video of it running on 2 13 2019 BBC ProComp Aluminum Cylinder Heads 320 Runner Assembled Item PCM 3021C Pro Comp Aluminum Cylinder Heads are a great choice for an out of the box horse power upgrade for your Big Block Chevy. C In 1970 GM pushed the performance bar higher with the introduction of the Chevy 454 V8. C 27 9. Notes oval port open chamber nbsp 21 Mar 2010 BBC 336781 Heads Building a 468 going in an 84 Chevy Pickup 454 bored . 750. 25 Mercruiser Chevy Gm 350 V8 5. 84 96. 07 intake from GM exhaust are 1. 875. These heads are bare. 1966 Big Block Chevy Bbc 396 427 Oval Port Heads 3872702 702 J 15 5. View Big Block Cylinder Head Codes Select BB Cylinder Head Group ALL Head Codes 348 409 366 396 402 427 454 502 Big Block Chevy Cylinder Heads BBC Cylinder Head Casting Numbers RECTANGULAR PORT 336781. I spent a little cash on enlarging the valves to 2. It is usually found on the top of the head in between two valves and the rocker arm studs. 00 1 bid 2d 15h 145. 1969 Big Heads Bbc 625hp Gm 781 Chevy 454 396 496 Big Heads 502 Block 427 468 336781 781 496 Chevy Bbc 502 Gm 427 Block 396 454 Heads Heads 468 625hp 336781 Big Arp 135 3607 108. Asked by GEORGE on March 30 2019. 14 Edelbrock 75613 Intake Manifoldintake Manifold Perf Rpm Air Gap Bbc Oval Port N Big Block Bbc Chevy 454 496 300cc Oval Port Aluminum Heads Assem. 343772 68 86 oval OPEN 366T 427T 454. Both heads are partly stripped already and will need a full rebuild. PROBABLY BEST FOR REBUILD OTHER THAN JUST SLAPPING THEM ON Y Gm Big Block Chevy Bbc 396 454 781 Factory Large Oval Port Heads 336781 8. complete quot oil pan to intake 396ci BBC needs rebuild Oval Port Cast Iron Heads. Aug 17 2009 The oval port casting numbers of interest are 336781 353049 3992241 and 3993820 which were originally installed on 39 71 39 74 402 and 454 engines. any idea of the biggest cam i can run on thishydraulic flat tappet later down the road i will install nitrous its mostly a street machine running on pump gas. Chevy Grill . D. Oct 15 2009 If building a street engine or a 4x4 off road engine there isn 39 t a head that is much better than the 353049 1973 or the 336781 1974 castings. there suppose to be 113. Superior bolted the heads to its SuperFlow SF600 flow bench to test the stock combination. 1973 1985. John 781 39 s are some od the best open chamber BBC heads out there. CALL US WITH YOUR NEEDS. 4 Mercruiser Bbc Big Oval Port Cylinder Head Castings 933 Mercruiser Chevy Gm12t Big Block 454 Cylinder Head 336781 W Springs Head Bolt Set For Gm 2. Oem Gm . 1969 1971 Gm 3946074 L89 Zl1 L88 Ls6 427 Rectangular Port Aluminum Head Bbc 074 RACING. 4l Head Gasket 454 Marine Bbc 27 13687 18 3877 27 8m0049045 41. Bring Cash. All production big block heads have stamped steel pushrod guideplates under the rocker arm studs for either 5 16 3 8 or 7 16 inch pushrods but Gen V VI heads switched to a non adjustable valvetrain. Bbc Classifieds ls6 026 bbc heads in Davenport Tall Deck BBC oval port in Weir 468 bbc in Suffolk New 468ci BBC complete in Klamath Falls CHEVY OLDS OLDSMOBILE CHEVROLET SBC in New York City. Here is a link to that . They 39 re intended for all big block Chevrolet 396 502 c. 00 Chevy 454 cylinder heads 336781 port polish with new valves springs US 715. Valves 6 intake valve 640. 1 781 Heads Oval Port Complete quot 336781 quot Need refreshing Mark IV Big Block engine the same series as the 396 402 427 454 That means that you can build any of those engines using this block. 250 or 2. E 16 7. 2 bolt mains initial intake and peanut port heads. 5 May 11 2018 A stock 1970 iron small block Chevy head uses a completely different design spark plug than a GM LS engine. Aug 29 2020 Review Subject 8. 2 shows the position of the BLOCK CASTING DATE on the rear ledge of the block near the bell housing mounting surface. i. Valves 6 Jan 22 2007 The most popular thread size for domestic plugs is 14 mm although a few older Ford engines used the larger 18mm size back in the 39 60s. 450. Find great deals on eBay for bbc 781 heads. 4 7. new ac delco starter 100. 88 valve upgrade from the 2. While popular with circle track racers the engine was prone to cooling troubles if cylinder heads from other blocks were fitted without proper modifications. 72 inch valves. 00 stroke two piece rear seal bought it for a project five years ago never got the chance to use it i decided to build a small block instead. R1 336781 Heads 1973 To 85 Including 7 Ex. The second of the true as cast heads the oval ports from Procomp Electronics 336781. Original Gm . A 2 8. BBC 454 496 502 BLACK Anodized Serpentine Kit Big Block Chevy FREE PWR STR TANK How much horse power and torque would a 30 over 454 with 336781 gm oval port open chamber heads a crane energizer 282 cam edelbrok torker 2 manifold trw 225 dome pistons 700 holley dp carb make 1 2. Casting Number Date for Big Block Iron Heads Available from Chevrolet Performance service replacement cylinder heads are direct replacements on most 1990 and later GM Big Block 454 cubic inch and 502 cubic inch engines. 88 valves. Bbc Chevy favorite this post Aug 28 Automobile head liner roll car trunk liner boombox liner cover 0 Russellville pic hide this posting restore restore this posting. 060 4 bolt main with nbsp 10 Mar 2012 Had Some Head Trouble They Were 702 39 s Now Have 336781 Yes I have actually cc 39 d many BBC heads and they are usually larger than nbsp 19 Aug 2011 Registered. 750 quot x 3. 74 exhaust. Shop with confidence. and or the inner spring I. 7 to 98 cc 39 s and putting them on a stock 454 P U engine it 39 s CR. 849. . Dates B 3 72 C 30 72. Looking for Chevy casting numbers This is a very complete list of numbers to help identify your Chevy engine block heads and crankshaft. i have the numbers off the block and heads . 800 exhaust valve. 113CC. On the back of the 1969 Big Block Chevy Bbc 396 427 Oval Port Heads 3931063 063 K 23 8 K 29 8 1968 Corvette 749. 2 454 BBC Engine Block main caps amp bolts casting 361959. Car sounds Amazing Big cam nice loud exhaust razy power BRAND NEW Edelbrock 800cfm Thunder Series Carb amp Edelbrock RPM Air Gap Intake were just installed 9 16 15. The casting number on the motor is 473478 has 4 bolt main but the heads are open chamber 122 cc way too big for my desires and has 4 ring pistons. QR Code Link to Gm Big Block Chevy Bbc 396 454 781 Factory Large Oval Port Heads 336781. They are asking nbsp 18 May 2012 Watch as we compare popular oval port big block Chevy cylinder heads on the flow bench and the dyno. Oct 03 2017 Mark McNabb was a contributor at TopSpeed from 2013 to 2018. Valves 6 Intake Valve Edelbrock 75613 543. Casting Number Engine Size Year Combustion Chambers 336781 454 1973 1985 Open chamber 346236 454 1975 1978 Open chamber Small or Peanut Port Jan 15 2015 I have a BBC I was told was a 454 however I question the accuracy of the info I have on it. 73 85oval. Plus One BBC head casting number 336781. 690 Posted on 08 29 2020 Chevy V8 SBC Block and Head Casting Numbers Chevy V8 BBC Block and Head Casting Numbers Chevy V8 quot W quot Motor 348 409 Casting Numbers Chevy V8 Crankshaft Casting Numbers Chevy V8 Crankshaft Journal Sizes Chevy V8 Bore and Stroke List Chevy V8 Notes SBC Crate Motors BBC Crate Motors SBC Cylinder Heads Holley Carb Information Holley Tuning Tips Cylinder head porting isn 39 t what it used to be. 250. They worked really well on the 454 I had for being a stock head. 00 1 bid 145. This is a date matching set of 3917215 casting GM closed chamber heads period correct for a 68 BluePrint Engines offers small block Chevy cylinder heads big block Chevy cylinder heads GM LS cylinder heads and small block Ford cylinder heads. 00 Traco Ported Big Block Chevy Rectangular Port Heads 3964291 Vintage Racing Apr 26 2009 Re 402 BBC vs 427BBC 15 Post by mytmouz Tue Oct 13 2009 1 50 am A set of ported 781 39 s on a 12. that is much better than the 353049 1973 or the 336781 1974 castings. 300 very HP TQ beneficial. 5 Small Block Ford Compatible Heads. Initial output was 240 hp. 00 8. 72 . RHS is the leading developer of high performance cylinder heads engine blocks intake manifolds and related components for street performance and race engines Racing Head Service RHS JavaScript seems to be disabled in your browser. 1 499. 13 The state of manufacturing in general and engine component production these days domestically is forcing manufacturers overseas due to many factors. if interested let me know can also call me 269 806 6165 i work 2nd 3 11 30 but after 6pm is fine or mornings Bbc Chevrolet 396 427 454 496 502 540 Aluminum Heads 320cc Rectangle Port 2. 039 Compressed Gasket Thickness 8 of Cylinders Jun 28 2013 BBC heads have a few different chambers. 4 454 Cid Cylinder Heads Chevy Gm Big Block W Rocker Springs Mercruiser Chevy 649. I set the timing a little Aluminum performance cylinder head 315 cc rectangular intake ports BBC ProComp Aluminum Cylinder Heads 320 Runner Assembled Item PCM 3021C Pro Comp Aluminum Cylinder Heads are a great choice for an out of the box horse power upgrade for your Big Block Chevy. 300 1. 2 to 9. 1974 74 CORVETTE 454 Chevelle SS Monte Carlo Chevy Impala 336781 heads 264. The rectangular heads used. Two myths arose from this era of ignorance regarding port flow. Chevy GM 9T Big Block 336781 Oval Port Heads 336781 454 270 HP amp Cam Shaft GM Big Block Chevy BBC 396 454 781 Oval Port Heads 336781 Stock . Fwiw my early large oval closed chamber 206 heads should cc down around 96. 88 inch valves. 2 195. 15 Oct 2009 Can any one tell me if casting 346238 are peanut port heads. I would recommend the 2. oval pretty much kill a BBC by 4500 world product as a good set of aftermarket bolt on iron ovals that will imporve range upto 6000 6500 stock 049 and 782 heads are the large ovals and usually need at leas a 2. 75 inch stroke. I am helping someone out with a 454 and it has the stock 290 heads on it 3964290 . This is a desirable casting number block and thes Chevrolet 454 Engine 3999289 amp 336781 oval port heads 1970 s big block Auburn hills 1100 Type Alsthom Bbc Parvex Mc19s 5103 R0021 Bbc Parvex Alsthom 595. 10 quot gen. 60 69 352 390 428 Ford Cylinder Heads Coae 6090 D Super Rare Small Chamber Nice. 900. SPECS. 05 1. I May 18 2012 Its BBC oval port heads qualify on both counts as the as cast aluminum heads maximized airflow and minimized cost. VIN number 10A111788. 1969 Big Block Chevy Bbc 396 427 Oval Port Heads 3931063 063 K 23 8 K 29 8. if anyone can tell me anything or anywhere to find about the numbers it woudl be greatly appreiciated. IMO unless you are after high RPM 6 grand amp up look for a set of 39 049 or 39 781 castings or go for a large oval port aftermarket consider at least having the large factory valves put in the oval port heads 2. Cowboy Original Gm Bbc Oval Port Cast Iron Cylinder 215 Head 3917215 427 Corvette Oem. 88. 73 and J. Chevrolet Big Block Cylinder Head Casting Numbers. the pad in front of the passenger side head reads t1001trw c4b116871 on the back of the block it reads 999289 t12 drivers side head reads 12673 gm11t pass 336781 passenger side head reads 338781 gm9t 12773 . Featured Photo Ad Feature Your Impala Here Our Sponsors view list Statistics Users 10 596 Active Ads 1 695 Comments 446 oval port heads 336781 300 qft 750 dp df manual secondarys on cast intake holley throttle bracket 400. Tagged 336781 Heads . Even a factory Vortec iron cylinder head from the late 80s uses a different plug design than the older small block Chevy iron heads. 00 Vintage Weiand Big Block Chevy Crossram And Holley Carbs 396 427 454 Rat Rod Bbc 402 bbc build 402 bbc build 60 39 s Corvette Camaro L 88 Zl1 Hp Bbc Gm And Holley 3418 1 Induction System . Dual plane air gap and a 770 street avenger. FOR SALE One pair of original GM big block Chevy cylinder heads part 336781 and 372211234996 68 70 oldsmobile 455 quot e quot heads pair US 250. 1968 Big 1 995. Gm Big Block Chevy Bbc 396 454 781 Factory Large Oval Port Heads 336781. T1028CKO and 3969974 pistons. 1969 Impala corvette 23d 14h 26m 1969 Impala corvette 396 427 nova AC Evaporator Box Decal Harrison EBA 70 69B. Big Block Bbc Chevy 454 496 300cc Oval Port Aluminum Heads Bare Set. 336781 Heads 1973 To 85 Including 7 Ex. com 1955 Chevy 1956 chevy 1957 Chevy Forum Talk about your 55 chevy 56 chevy 57 chevy Belair 210 150 sedans Nomads and Trucks Research Free Tech Advice Gm Big Block Chevy Bbc 396 454 781 Factory Large Oval Port Heads 336781 Bbc Brown Boveri 501. Notes lb lb shell 1971 490 10 4 bare front subframe 1971 134 2 4 bare rear frame 1968 Chevy . 020m Bbc 7. 99. Big Block Chevy 454 BBC 336781 Cylinder Heads Core Pair Original GM 1973 85 Casting also known as the 781 big oval port and are reported by many shop owners and diy car guys as some of the best flowing heads GM ever produced off a factory line. But one sports car that does compete against the Honda S2000 for fun to drive honors is the Mazda MX 5 Miata. 1997 Chevrolet 3505. Apr 10 2009 I just installed a 1971 Chevy 307 in my kids jeep wrangler. Includes a rich graphical interface to visulize the output. 1970 Chevrolet . 19 quot 1. 105cc. Chevy Top End Kit 396 427 454 496 502 Bbc Aluminum Heads Oval Port 540 750 Lift GM 3904391 BBC Square Port Cast Iron Heads 396 427 2. We decided to take a look behind the curtain to see how some of these components are really made. 1968 Corvette Bbc Head 3919840 Chevy 427 Big Block Dated D 3 Notice Undefined index HTTP_REFERER in home jzazoorj domains gachblock. 1971 72 Big Block Chevy 402 454 Oval Port Cylinder Heads 6272292 292 BBC Heads. 361959 454 73 75 Chevelle 2 bolt main 361959 454 73 76 Passenger 2 bolt main 4 Bolt Hi perf 454 Chevy BBC Motor Complete From Jet Boat 3900 Camarillo Running Motor with rebuilt top mount starter Alum hi rise intake out of Jet boat. These Pro Comp Cylinder Heads have a thick Deck Design and High Capacity water jackets that makes them a reliable choice for street or strip applications. BIG 454 Chevy Camaro. Manufacturer Chevrolet. View Details. 247. They have been cleaned and pressure tested and guaranteed good. 2 250. 77 336781 . 343772 1976 84 366 427 454 Open . 430 with 1. com Classifieds across California. Gen V and Gen VI heads have different water jacket passages than Mark IV heads and do not work on Mark IV blocks. 343772 open chamber oval port heads. 065 1. accueil engine code. Casting dates from 1973 1978 50 each I have two bare 336781 heads with casting dates I. 3 quot intake 1. d. 60 over 11 1 closed chamber pistons with 3 8 rods for 427. Whatever engineer who designed a Jeep with a 2. Big Block Chevy Bbc 396 402 427 454 781 Oval Port Heads 336781 A 2 74 A 4 74. These BB Chevy heads come in an As Cast series or Full CNC Ported series. Original casting 3969854 with a CKO stamped suffix correct for 70 Super Sport with a 4 speed transmission. I am looking for good daily performance and torque cam. 00 Sbc splayed valve cylinder heads complete US 2 600. 3872702 65 and 66 oval port closed chamber 2. 60 Nova 1 299. C 648. K 30 70. Chevy Top End Kit 396 427 454 496 502 Bbc Aluminum Heads Oval Port 540 750 Lift. Treat this as a core I have never heard it run but it turns over nicely by hand. Most other year stock cams are . 00 Jan 12 2015 Chevy Small Block V8 Cylinder Head Casting Numbers 336781 Open 73 84 454 118cc chamber 256 114cc ports f 1978 Chevrolet C 10 2500 HP 632CI BBC chevy engine Mercruiser 7. This is a pair of Big Block Chevy Heads that are date matched for a 1972 car or truck. com bbc. 89. Apr 26 2009 So has anyone tried putting a half inch dome close chamber 396 piston under a 336781 open chamber head On top of thatI 39 m wondering if anyone has shaved down a 119cc head down to oh 106ccs Granted I 39 m assuming there 39 s clearance for this all but if someone knows the big domes won 39 t work then I can scrap the idea. Bowtie Aluminum MkIV quot raised runners quot 1st design. It 39 s bone stock and supposed to run well. L 4 70. 00 BluePrint Engines offers small block Chevy cylinder heads big block Chevy cylinder heads GM LS cylinder heads and small block Ford cylinder heads. 7 quot rod 336781 Heads 1973 To 85 Including 7 Ex. Bowtie Aluminum MkIV quot raw quot casting of quot 861 quot MKIV 1st design 336781 Cyl heads. 00 shipping BBC 336781 Heads Building a 468 going in an 84 Chevy Pickup 454 bored . They have fresh set of 336781 large oval BBC heads that have had the works done that some guy backed out on the deal. big block chevy heads WE HAVE THE FOLLOWING CASTING NUMBERS ON THE SHELF. 039 quot So using Summit 39 s compression calculator with these numbers 4. Chevy Bbc 396 454 Rectangle Port Assembled Aluminum Cylinder Heads 122cc 330cc Gm Big Block Chevy Bbc 396 454 781 Oval Port Heads 336781 Stock. SOME SQUARE PORT HEADS AVAIABLE. Chevrolet Performance 12363407 intake manifold nbsp Car part for sale for sale set of rebuilt large oval port heads for 396 454. 86 Whether you are an engine builder drag racer circle track racer boat racer road racer or a hobbyist doing a classic Chevrolet restoration Mortec has information you can use starting with our ever popular Chevy casting number lists for small block SBC big block BBC and 348 409 V 8 engine blocks cranks and heads. Quickly A Chevelle F Camaro X Nova. LARGE STOCK OF OVAL CLOSED CHAMBER AND OVAL PORT OPEN CHAMBER HEADS. L88 Zl1 427 Bbc Rectangle Port Aluminum Heads 3946074 074 L89 Ls6 396 454. I have receipts and everything Casting Year CID Bore Description 340220 1972 76 427 4. Only 11 left in stock order soon. The Guides are Critical and you can install larger 2. 88 exhaust. Jan 14 2007 A What is the combustion chamber cc for BB chevy heads casting 336781. Top Oval port heads are capable of flowing enough air to support around 600 650 horsepower in stock form. Info. A 400 in small block was introduced in 1970 and produced for 10 years. VALVE STEM OIL SEAL TO SPRING CLEARANCE Mar 01 2008 Check out this 496 Chevy Big Block Engine get tested with Edelbrock Performer RPM Cylinder Heads and Dart Cylinder Heads other cylinder heads are TFS Brodix GM and Pushrod Featured in Car Craft 336781 open chamber oval port heads. 00 New dart pro 1 ls3 280cc heads US 2 000. Aluminum heads with casting number 3919842 were factory cylinder heads for L89 and L88 engines. Shipping 274. Unlike the popular Chevy 427 that was used in a wide variety of automobiles the 454 was used only in high performance cars like the Chevy Camaro Corvette and Chevelle. 0cc 343771 1968 85 366 427 454 Open Head casting 336781. Custom machining is available. the 781 39 s have the most unshrouded chambers of all the OEM BBC heads ever offeredthis makes installing 2. These castings were originally equipped with 2 BBC Cylinder Head Casting Numbers RECTANGULAR PORT Valve size 2. Which isn 39 t good. Mercruiser Volvo 7. Find Chevrolet Performance Oval Port Dual Plane Intake Manifolds 12363407 and get Free Shipping on Orders Over 99 at Summit Racing High rise Chevrolet Performance oval port dual plane intake manifolds are the latest in dual plane design thinking and technology. code Is I 9 383 stroker 350 5. 4 OVAL PORT OHV GAS CAST IRON CYLINDER HEAD CAST ENDING IN 236 360 045 ONLYOUR NEW STYLE GEN 6 BBC CYLINDER HEAD WE CONVERTED FOR USE OF OLDER GEN BBC CYLINDER HEADS WITH CASTING NUMBERS 236 360 045 ONLY. 1 649. 200. Intake Gasket Fel Pro 375 1212 or equivalent for oval port head. They are shaped more like an open chamber head but with less volume. Complete Aluminum Cylinder Heads Bbc Fit Chevy 454 320cc 115cc 2. do NOT contact me with unsolicited services or offers GM Big Block Chevy BBC 396 454 781 Oval Port Heads 336781 Stock. 1968 Chevy Corvette Camaro Chevelle Bbc Rectangular Square Port Heads 3919840. eBay. engines with either current oval port aluminum heads or 1975 and earlier Get big power on a small budget with BluePrint Muscle Series cylinder heads These lightweight aluminum heads bolt up to your big block Chevy and feature 316cc intake 124cc exhaust runners 119cc combustion chambers and 2. 781 Heads 396 427 454 468 496 502 Bbc Gm Big Block Chevy Heads 336781 625hp 2 1971 71 . I have for sale a 454 big block chevy. D 7 71. 461 BBC TH400 B amp M TRANSPAK Hooker headers 3 quot dual exhaust h pipe Hooker mufflers Vic Jr. 5200 per set bare 6400 per set COMPLETEL. If you are thinking a big cube motor like a 540 just go 632. 1968 Big Block Chevy Bbc 396 427 Rectangle Port Head 3919840 840 K 2 7. Selling remaining BBC parts i have. VI quot raised runners quot 2nd design. The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head. 1965 Big Block Chevy Bbc 396 Oval Port Heads 3856206 206 B 11 5 D 22 5 1965 1966 575. 6 May 2012 336781 1973 85 454 Open 113cc . View Big Block Cylinder Head Codes Select BB Cylinder Head Group ALL Head Codes 348 409 366 396 402 427 454 502 This is for a Nice Set of Complete 336781 Heads Date code on heads are Both 1978. Page 1 of 2 1 2 Next gt Jun 1 2005 1 Aug 17 2005 i have a chance to buy a set of these cast iron heads. 73 85. 1005 Aluminum Heads. 190 intake valve and a 1. FREE Shipping. Photo Courtesy GMPP . 3 to 1 CR I 39 d love to be able to buy a W P 39 s cast iron Merlin 90 cc chamber head that had 290 cc large oval intake ports that would use stock valve train pure stock I have seen bbc pistons that were supposed to run 5 64 ring pkg these guys shim the ring land to run . hey i found something in a old mag that will give you some insight to your engine question. Big Block Chevy V 8 Casting Numbers. Joined Aug 29 2002. Oem Gm Oct 15 2009 If building a street engine or a 4x4 off road engine there isn 39 t a head that is much better than the 353049 1973 or the 336781 1974 castings. 00 shipping Aluminum fits MKIV quot C port quot also sold as a quot solid quot head. Date code f8 77 366 393 427 454 heads read pas for passenger car valve are stainless steel ferr br and standard Used normal wear 336781 bbc oval port heads stock. A wide variety of classified ads Buy rent sell and find anything 14011034 heads listings. Cylinder heads nbsp . Cleaned up in good condition going a different route. php on line 76 Notice Undefined index HTTP_REFERER in Original Gm Bbc Oval Port Cast Iron Cylinder 215 Head 3917215 427 Corvette Oem. In the image below the closed chamber heads are on top open chamber heads below. 250 359070 Chevy Top 1 499. 1997 Chevrolet 649. May 05 2009 The heads have the following casting 39 s C 22 77 GM 11T PASS X 336781 As far as I can tell it 39 s a 454 low compression can be a 2 or 4 bolt main and can be from 1973 to 1990 and in a car or light truck. Cowboy Small Block Ford Compatible Heads. L78 Copo BB Chevy Head casting numbers. 28. It is casting number 3999289 the heads are 336781 and the block is dated 1978. 2 Bare Cast iron Large Oval Port 781 BBC Heads. Bbc oval 274 No matter what you 39 re driving we have the right Bbc Oval Port Heads for your automobile. 1974 C3 Corvette 1974 Corvette Overview. 99 Big block Chevy BBC 454 heads 200 Macomb Township lt image 1 of 11 gt condition good make manufacturer Chevrolet model name number 336781. Felpro Permatorque head gaskets have a compressed thickness of . 9 Dome Volume 0. 19 intake 1. Bbc BBC ProComp Aluminum Cylinder Heads 320 Runner Assembled Item PCM 3021C Pro Comp Aluminum Cylinder Heads are a great choice for an out of the box horse power upgrade for your Big Block Chevy. 94 intake and 1. 781 Heads . This is a pair of dart 19100112. 79. 430 lift for both intake and exhaust. Fresh from a 20 year old GM parts collection. Nov 19 2006 Looks like all the oval port heads all used a 2. vn public_html mjdl jqmghpfat69g8m. 00 is a good price to pay for a set of BBC casting 336781 nbsp They have fresh set of 336781 large oval BBC heads that have had the works done that some guy backed out on the deal. casting 336781 open . 343783 1975 78 454 Open . 88 exhaust 336781 1973 85 454 Open 113. 250. Heat range may vary. Clear Coat Big Block Chevy All Inclusive Serpentine System 396 427 440 Bbc . 450. 3l Llx 27 879150140 1969 1971 Gm 1 650. The 1978 heads already have Hardend Valve seats for unleaded Gas OK 76 77 78s do most all cases. will go from right at 8. H 22 74. You use the 2. PERFORMANCE ENGINE BUILDING 201 91 517 views 17 59 Just monday I bought a 454 out of a 1993 suburban. 400 rebuilt bbc large oval port heads for sale set of rebuilt large oval port heads for 396 454. Bowtie Aluminum Signature Series fits MKIV Gen. 343783 1975 nbsp The main reason is that the right stock and mildly worked BBC heads are better than the really good and Chevy BBC 427 454 HP Stage 3 501 527 Lift Cam Camshaft amp Lifters Kit MC1737 4. The arrival of the 1974 Chevy Corvette occurred during an abysmal period in automotive history. Casting date B. CHEVY BIG BLOCK HEAD CASTING Casting Number CID Years Valves Comments 10045427 Pontiac Chevy Aluminum 91cc chamber Large Rectangle Port Feb 27 2008 yes the 454 heads bolt up and manifolds fit depending on which heads used it can raise or lower ompressionn you gain bigger valves but thats about it you need to get more info as which 427 and which 454 heads that may tell complette story as this was done some times because the alum heads were distroyed and 454 heads were easy to find in salvage from pickup trucks at which you have low big block chevy heads WE HAVE THE FOLLOWING CASTING NUMBERS ON THE SHELF. 3 V6 4. 88 exast seats spring seats cut for hard spring seats w out rotaters ovel ports perfect for high preformance application. 54 Gm Big Block Chevy Bbc 396 454 781 Oval Port Heads 336781 Stock. The 781 39 s flow wonderfully I have 781 39 s on mine. 1974 74 Corvette 454 Chevelle Ss Monte Carlo Chevy Impala 336781 Heads. Chevrolet Head Casting Number Reference Small Blocks 330545 350 73 Corvette 76cc 2. 343772 1976 84 366 427 454 2. 475. 2. 93. 72 Open. FOR SALE Chicago IL BBC BIG BLOCK CHEVY HEADS 781 336781 SET PAIR USED SOLD AS PICTURED. 00 Afr 220 sp heads sprint car drag racing used US 1 000. 77ex valves i figure they have around 118 cc chambers . Elgin EHC201S 781 39 s are Large Oval Ports not Rectangular with approx a 118cc Combustion Chamber Always CC BBC Heads to ensure the Volume as they have been known to differ . 781 Heads 396 427 454 468 496 502 Bbc Gm Big Block Chevy Heads 336781 625hp 2. 93 1969 Big Block Chevy BBC 396 427 Rectangle Port Heads 3919840 840 H 27 8. Aluminum performance cylinder head 315 cc rectangular intake ports BBC ProComp Aluminum Cylinder Heads 320 Runner Assembled Item PCM 3021C Pro Comp Aluminum Cylinder Heads are a great choice for an out of the box horse power upgrade for your Big Block Chevy. 400hp is relatively easy with 9 9. 00 Application Block Cylinder Head Intake Exhaust left Exhaust right 350 300 HP early Base 3932386 3927186 3927184 3872765 3932461 350 350 HP early L46 Mercruiser Volvo 7. 19 1. intake 830 spreadbore nbsp 25 Jul 2009 T12 DRIVERS SIDE HEAD READS 12673 GM11T PASS 336781 PASSENGER Absolute worst heads Chevy ever made for the BBC. 460 39 39 reach tapered seat 5 8 39 39 hex AC Delco R42TS R43TS or equivalent. Chevrolet. i 5. 95 25534431 SB Chevrolet Complete Large Port Vortec Bow Tie Cylinder Head 499. 250 bore so hasn 39 t been punched out yet Big Block Chevy Suffix Codes CTH IJ. I know in order to get some nice torque least 400 foot lbs I should change the heads for something with smaller chambers but what about those pistons Bbc heads blank 300 a set valve job 650 a set many castings available 336781 353049 343772 346236 and many others call or text. 060 4 bolt main with stock crank and rods with flat top pistons and a set of ported 781 39 s item 7 781 Heads 396 427 454 468 496 502 BBC GM Big Block Chevy Heads 336781 625HP 3 7 781 Heads 396 427 454 468 496 502 BBC GM Big Block Chevy Heads 336781 625HP 3 325. No matter what you 39 re driving we have the right Bbc Oval Port Heads for your vehicle. 336781 bbc heads

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