Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads. 1969 Original GM Aluminum Big Block Chevy Heads with valves and springs. Casting No. Just as a "general" rule. Spring pads are machined to 1.740 to except the largest roller springs. Chevy BB Oval Port Iron Heads. This is a pair of original GM 3946074 aluminum cylinder heads for Big Block Chevy engines. . I do not have the match. You don't have to do much to them to make them work, either. 10049875. You can search for specific specs or numbers or even view all. THANK YOU FOR LOOKING. Description. E 16 7. 10051128. 1 - 7 of 7 Posts Material. C 27 9. 3993820. Manufacturer Part Number. There are also "semi-closed" chamber heads like the c/n 215 heads. could find flow numbers on google thanks N NAIRB Hotrodders.com Moderator With peak intake flow numbers of 384 cfm, the heads we capable of supporting over 750 hp, but on our 496 manage 691 hp and 603 lb-ft of torque. Just Google it, and you'll be shocked at how much info exists. 3917215. Please see the attachments below for a list of cylinder block, head, and intake manifold casting numbers used on big block Mopar engines. Date Codes: 11.20.68 and 2.5.69. 1969-1971 427/454 block casting number 3963512 with October 15 casting date on bell housing area. 454. Other sources state more like 112-114cc. C 28 7. Afaik, they could be correct for some 1970 year 402s, and are correct for a '71 LS-5, but not a '70 LS-5. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more! The casting number on these blocks is 14015445 - used in light duty trucks 1975 through 1987, and obviously held over on the marine side through 1989. This engine used oval-port cylinder heads and dished pistons almost exclusively after 1984; prior applications could use either oval or casting number 236 "peanut" port heads. . Answer ID 650 | Published 10/06/2001 03:59 PM | Updated 12/18/2018 07:59 AM. . Aluminum performance cylinder head. The next numbers you need are the ones just below the starter on the passenger's side: the conveyor number. The Engine Suffix Code is stamped on a block pad located immediately forward of the right hand or passenger side cylinder head. Big Block Chevy 375cc/127cc "Jackal" Big Block Chevy 390cc/133cc "JAILBIRD" Small Block Chevy 180cc/64cc. These were die-cast parts that were high-quality and very popular. Have located a 454 casting number 361959 which the owner says is a 4 bolt main engine out of a 1980 truck. 1968 Camaro SS 396 coupe L78 - now old school 468 big block . The entire engine code contains the assembly plant (1 digit), month (2 digits), day (2 digits) and the engine suffix code (1 to 3 digits). Ford's part number convention generally follows the format of a four-digit casting code, followed by a four-digit basic part number, which will be "6090" for a cylinder head, followed by the revision version. Serial Number Identification. Pontiac Casting Numbers. item 3 Trick Flow 580 HP BBC Top-End Engine Kit for GM Chevy Heads Cam Rockers Trick Flow 580 HP BBC Top-End . ACCESSORIES. If you are looking for early Chevy casting numbers for Big Blocks and Small Blocks as well as Holley Carb info, be sure to check out Mortec. BBC Pro1 24 275cc Heads (Oval) BBC Pro1 24 310cc Heads; BBC Pro1 24 325cc Heads; . The block was completely. Big block heads started with numbers only in April of 1984, but changed to alpha-numeric starting with BB 1 in August of 1984. Open-chamber designs are larger and provide lower compression ratios, so require a much larger piston dome to achieve the same compression as a closed-chamber head. The stamping is usually located on the end of the casting above . Date Code location 1 Or Date Code location 2. GM Pattern Number location. I have a friend . Mark IV Series 366 . BBC Cylinder Head Casting Numbers: RECTANGULAR PORT - Valve size 2.19 intake, 1.88 exhaust: Casting # Years: CID: Chamber: HP/RPO/Comments: 3904392: 1967: 427 Among the very first aftermarket valve covers for the 396 and 427 engines were these from Cal Custom, in Gardena, California. WE HAVE THE FOLLOWING CASTING NUMBERS ON THE SHELF.3856206,3872702,3904390,3917215,3919840, 3931063,3964290,3993820,3999241.LARGE STOCK OF OVAL CLOSED CHAMBER AND OVAL PORT OPEN CHAMBER HEADS.SOME SQUARE PORT HEADS AVAIABLE.CALL US WITH YOUR NEEDS. An old speedpro book lists them for '70-'72 both 402 and 454, and 105cc. Completely Machined and Reconditioned. More information has been added as well as reference pics when they are available. I go over some basics of Small and big block chevy block and cylinder head casting numbers, date codes, and suffix codes. 3917219. Small Block Chevy 200cc/64cc. Completely Machined and Reconditioned. Small Block Chevy Distributors. Founded in 2007, we offer an extensive selection of cylinder heads for Ford, Chevrolet, and . By popular demand I attempt to give some good insight and info on Big Block Chevrolet Heads . 3993820. This is usually a seven-digit number and each letter/number is about 1/2 inch tall. 376455 350, 77-85 458642 350-400, 67-70, Big-block head bolt torque pattern. We've compiled some history and a massive library of parts swap knowledge into a comprehensive resource. Casting Number/Date for Big Block Iron Heads Available from Tracy Performance. Closed-chamber cylinder heads have small combustion chamber volumes for high compression ratios, with even mildly domed pistons. Speed Demon aims to be the world's fastest piston-powered car with help from a 555-cubic-inch. These heads work well across the full rpm range. Small-block 350s and 400s have much thicker balancers. Chevy LS Blocks and Heads. 333882 350-400, 74-80, 76cc, 160/60cc ports 340292 "Turbo" Over Counter Angle Plug, 64cc, 2.02-1.6 valves 354434 262-267-305, 75-79, 163/57cc ports LW casting 358741 305, 76-79 376450 262-305-350, 84-81, 168/60cc ports, 7 bolt ex. Jan 10, 2007 Chevy Big Block V8 Cylinder Head Casting Numbers CASTING#YEAR.PORT TYPEENGINE SIZE 33086468-84.oval.OPEN.396, 402, 366T, 427T, 454 Truck We'll end our lesson in stance and style with. GM Inline 6. . It was used on 1986 to 1987 350 L98 TPI Corvettes. Other 'pairs' of 327 heads 1.94 vs. 2.02 intake valve size and different combustion chamber sizes are found in other years with casting numbers 3782461 (64-66 model years) and 3890462 (66-67 model years). Answers to these questions and many more fill this complete guide to all 1955-93 Chevy V-8s. BRODIX started numbering small block heads in April of 1979; an alpha-numeric system was started with A 1 in August of 1979. $400.00. I don't know much about big block Chevs, and am just going by what I have found on line. 90-94. If you have factory dished pistons and a stock-style .040" gasket and typical stock piston .023" down the hole for deck height and your heads are on the large side for chamber volume, you could have whopping 7.9:1 CR. The casting numbers for small-block Mopar and big-block Mopar are a seven-digit number, which is raised, and usually found in one of two locations. Chevrolet Big Block Casting Numbers. These heads have been repaired, previously welded cracks and and seats installed. Date Codes: 11.20.68 and 2.5.69. Oval port, open chamber, 427 tall deck. Since it's fairly obvious that you're looking at a cylinder head, the important digits are the first four and last two, and in . . Has nothing to do with horsepower rating. Product Key Features. Product Identifiers. Pro1. It is usually found on the top of the head in between two valves and the rocker arm studs. There's of tons of info on-line about -781 and -049 heads. Coverage includes blocks, heads, crankshafts, intake and exhaust manifolds, carburetors, fuel pumps, water pumps, generator/alternators, and EGR valves. The Dart Big Block Chevy Pro 1 Aluminum Heads were inspired by Dart's championship-winning Pro Stock designs and available with 310, 325, 345, or 355cc oval or rectangular port intake runners, big block Pro 1 aluminum cylinder heads deliver out-of-the-box airflow that smokes the competition! HEADS. 1969 Original GM Aluminum Big Block Chevy Heads with valves and springs. Big Block Cylinder Head Casting Numbers RECTANGULAR PORT - Valve size 2.19 intake, . Casting #3935401 date code 1-11-67. Casting number 820 heads are similar to the 215 semi-closed head, but with less quench pad area. Big Block Chevy Oval Port Cylinder Heads 781 Casting. Big Block Chevy Head Casting Numbers Big Block Chevy Head Casting Numbers 10 out of 10 based on 223 ratings. I have a big block chevy casting # 10114182 and head casting # 10114156. A little engine degreaser and a wire brush often makes reading the casting number easier. Chevrolet Small Block Head Casting Numbers; Casting # Combustion Chamber Size (CCs) Intake Valve Exhaust Valve Production Years Misc. 336781. eBay Product ID (ePID) 656776972. Ford Big Block Heads. The 1996-on Gen II and III engines have non-adjustable net lash valvetrains. BBC Cylinder Head Casting Numbers RECTANGULAR PORT - Valve size 2.19. Engine Size (ci) 10033867: 62cc: 2.02: 1.60 : over the counter 23 degree, angle plug, 196cc intake runner, aluminum : 10045434: 55 cc : Over the counter 15 degree, angle plug, raised runner, aluminum : 10051101: . (10) This 3963512 block dated October 15, 1969 has casting date on bell housing flange and is a warranty block. Assembled with .640 flat tappet, or .650 hydraulic roller springs. New set of complete Aluminum Big Block Chevy Pro Comp Motorsport Heads. BBC Cylinder Head Casting Numbers RECTANGULAR PORT - Valve size 2.19 . BBC Block Casting Numbers Click Header to Sort T = Tall deck, 10.2" deck height 1991 and later Gen.V, VI and VII production BBC motors have one-piece rear main crank seals. This NHRA-legal aluminum cylinder head is a replacement for the L88 Big-Block cylinder heads used on 1968-1971 Corvettes and 1969 Camaros. 336781. If the price of a 427 is under $1000, it is most like a 427 truck engine. C 27 73. 1972 block casting number 3999289 1972 402 block casting number 3999290. Big-Block Chevy Cylinder Head Casting Numbers. These heads are a decent choice for a production head especially on a smaller displacement engine (up to 454 cid). That's why we have put together this short big-block Chevy head ID guide to help you identify that swap-meet gold. Courtesy Todd Burke 1969-1972 402 block casting number 3969854. 2.250 intake and 1.880 exhaust valves. The big block Chevy is one of the most raced engine platforms in motorsports. Big Block Chevrolet Compatible Heads Menu Toggle. Just wanted to know of anyone that could give me some insight. Big-Block Chevy Cylinder Head Casting Numbers 330864: '68 through '84 oval port, open chamber, 2.06- and 1.72-inch valves. Ford Small Blocks. 353049. big block chevy bbc 1971 model 454 512 casting engine Chevelle. This app covers Casting Numbers associated with the 348,366,396,402,409,427 and 454 Big Block Chevy Engines from 1958 thru the mid 1990's. With so many combinations of Bore and Stroke, Valve Sizes, Crank Styles and Intakes that were used it is 330864: '68 through '84 oval port, open chamber, 2.06- and 1.72-inch valves. This site is for Corvette C3 enthusiasts and has lots of information pertaining to Corvettes built between 1968 and 1982 348 and 409 block casting codes, head casting numbers, exhaust manifold casting numbers, and intake manifold casting numbers. Casting Numbers: 3919842. Use of either style head requires that the correct pistons are used, otherwise. These cylinder heads meet GM's stringent quality standards and provide excellent service and durability not found in used cylinder heads. This information has been gathered from several sources and has not been verified. The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head. Chevrolet Big Block Engine Identification - A Quick ways to visually identifying a Chevy Big Block Series. CFD marking location. BBM Manifold Casting (2)2.jpg (129.10 KB) BBM Block Casting.jpg (52.80 KB) Find cast numbers. The large oval port type is the most common Chevy Big Block Head. Casting number 14101128 head features 58-cc chambers, screw-in studs, and angle plugs. CHEVY BIG BLOCK V-8 Crankshaft Casting Numbers BBC TWO PIECE REAR MAIN OIL SEALS 3.76" STROKE used on '65-'90 Mark IV 366T, 396, 402, 427 or 427T 6223396,402,427.forged, 1053 steel 7115396,402,427.forged, nitrided, cross-drilled, 5140 steel 3804816..396,402,427.cast 3856223..396.forged 3863114..402. Casting # location 1 Or Casting # location 2. Chevy BIG Block Factory Engine Identification Code Guide 1958-99 (MSA-1) . BBC Head Casting Numbers Click Header to Sort T = Tall deck Oval includes both "peanut" (also called "round") ports and large oval ports We would like to thank everyone that has contributed to the data provided on this site. Used on 396ci, 402ci, 366ci truck, 427ci truck, and 454ci truck. Thanks. We would like to thank everyone that has contributed to the data provided on this site. . The second location is on the underside of the intake runner on the cylinder head. 348/409 All of our casting codes are now in searchable databases. H 22 74. You may see a "5.0" (305) or "5.7" (350) cast on the rear ledge of a smallblock or a "7.4" on the side of a big block 454. what the flow of this heads is 3973487..71-72.350.used on 71-72 350 LT1, 75cc chamber after some bowl work ,clean up the ports and gasket matching. Chevy Casting Number identification including Block casting numbers, cylinder head casting numbers, Crankshaft and intake casting numbers. Woods chose FLOTEK cast-aluminum cylinder heads for the 496. E.g. Chevrolet Big Block Cylinder Head Casting Numbers. These happen to be casting #3917291 with 63.305 and 63.995 cc combustion chambers respectively. K 30 70. They are shaped more like an open chamber head, but with less volume. will have a forged crankshaft (366s too). CNC Ported. Pontiac/Chevy Aluminum, 91cc chamber Large Rectangle Port. The best of the iron oval port, open-chamber heads are the casting number 353049 versions that when upgraded with larger 2.25-/1.88-inch valves and some very . A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. the valves are 1.94/1.5 i know it all depends on the porting but,give me a idea what it could be. 10134996 Small Block V8 4-bolt, Bow Tie, aluminum, 4.125 bore, 2.65 main journals 10199001 Small Block V8 1993-1995 350, 4-bolt, LT5, Corvette ZR1, 405hp 10243878 Small Block V8 1996-1997 305, 2-bolt, Vortec truck, roller cam, 1-piece rear seal 10243880 Small Block V8 1995-1999 350, 4 bolt, crate engines and ZZ4, roller cam, one piece rear seal Manufacturer Part Number . Big Block Mopar Casting Numbers. Big block Chevy valve covers Here are some of the cast aluminum big block Chevy valve covers that I've collected over the years. I just recently looked into that casting # for a friend. 400mph Speed Demon Heads to Bonneville, Switches to Big-Block! When referring to the different casting numbers of Chevy heads, typically the last three digits are used because in most cases these numbers are not reused. 3909802. Part Number: 301-19474139. . Attachments. The PowerPort heads shared the large (122cc . Ford Flathead 1932-1952 Lincoln 1961-1975 Mercury 1939-1976 Mercury Flathead 1939-1953 Mercury Montego 1960-1971 Mopar Small Block 1935-1959 Mopar Small Block 1960-1969 Mopar Small Block 1970-1979 Mopar Small Block 1980-1990 Mopar Big Block 1959-1978 Oldsmobile 1949-1979 Oldsmobile 1980-1991 Pontiac 1955-1979 Pontiac 1980-1990 Logged crewchief22 Team Member Informative Member Karma: +66/-0 The port is shorter than the rectangular port which helps generate air velocity at lower rpm. BBC Cylinder Head Casting Numbers RECTANGULAR PORT - Valve size 2.19 intake, 1.88 exhaust IP = Intake runner volume OVAL PORT - Valve size 2.06 intake, 1.72 exhaust BBC Camshaft Part Numbers Note 1: 80 deg overlap, 396 375hp L-78/L-89, 427 425/435hp L-71/L-72, 454 450hp LS-6, HP street BIG BLOCK CHEVY. Have Accessory holes to except factory accessories. They're heavy, but for the money, they are definately worth considering. Use thread sealer on all bolts that go into the water jacket, which means all blocks except Bowtie and aftermarket. 315-cc rectangular intake ports. Dart 19474139 Dart Big . accueil engine code. BBC Cylinder Head Casting Numbers RECTANGULAR PORT - Valve size 2.19 intake, 1.88 exhaust Chevrolet. Casting Numbers: 3919842. At a minimum, do a casting flash clean-up and some bowl work. The item "Big Block Chevy Cylinder Head 3935401 1-11-67 oval port open chamber 396 427 BBC" is in sale since Thursday, January 21, 2021. . 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. This information has been gathered from several sources and has not been verified. The basis of Speedway Motors' throwback 496-inch big-block Chevy was a 1972 number-289 454ci block casting. A lot of these (maybe all?) Used on 396ci, 402ci, 366ci truck,. Actually most (maybe all?) According to info I have found the heads are "peanut port heads." There's a lot of conflicting info on whether these are good heads for boats. 6272292. D 7 71. Favorite Links. F 7 72. There is always an exception to the rule; in this case it's c/n 462- which was used on no less than SIX different castings! Manufacturer Part Number . About this product. Block Casting Date . . 3931063. Find many great new & used options and get the best deals for Big Block Chevy Oval Port Cylinder Heads 781 Casting at the best online prices at eBay! Brand. Chevrolet. Big Block Crankshaft Casting Numbers Lookup Type your crankshaft casting number in the SEARCH BOX below. The engine is in a '28 Ford of all things and also has aluminum heads, casting number: 3946074 which came on high horse 427's like L88's and a factory GM aluminum manifold 3933163 which is from the same era. CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. K 26 73. . Chevy Factory Cam Specs. This is for ONE head. View Big Block Cylinder Head Codes Chevy Big Block Cylinder Head Codes (ALL) Casting No: Years: CID: Intake: Exhaust: Chamber: CC: 330864 : 1970-81 : 366 . Cast Iron. Machined for 2.250"/1.880" 11/32" valve stems. The first would be on the top of the intake runner, under the valve cover. To attempt to make this clear the engine suffix code is the 2 or 3 digits at . This is not really true because in the case of the peanut port chevy big block heads a bit of port and bowl clean-up and the extra 100 cubic inches of displacement and canted valve heads provide a distinct advantage in flow over most stock Pontiac 350 heads . About this product. I find out some interesting stuff . Stock head bolts get torqued to 70 ft-lbs in three steps of 40, 55, and 70 ft-lbs. The 3/8-inch small-block and 7/16-inch big-block Chevy screw-in studs with matching guideplates and rocker arms are available. Cylinder Head 11.20.68 has had the EGR crossover epoxy filled. A 2 8. These heads have large oval-shaped ports that are about 2" tall and 1 " wide. On the side of some later blocks the last three digits of the block casting number are cast into the block, but these are difficult to see when the engine is in a vehicle. RECTANGULAR PORT - Valve size 2.19 intake, 1.88 exhaust 781s came on mid 70s cars and pickups. BF Series/9.5/11 LH Series . Cylinder Head 11.20.68 has had the EGR crossover epoxy filled. 110-cc exhaust ports. item 2 GM Big Block Chevy 454 Oval Port Cylinder Heads pair GM Big Block Chevy 454 Oval Port Cylinder Heads pair. Replacement head for P/N 14011076. Chevy V8 BBC Block and Head Casting Numbers Chevy V8 "W" 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 Chevy engines and parts on eBay Other links FLOTEK is a leading brand of aluminum high-performance cylinder heads. 10114187 Leave a comment at the end of this post if you cannot find the information you want Show entries Search: Showing 1 to 62 of 62 entries Previous Next Chevy Exhaust Manifold Casting Numbers Lookup Description. BIG BLOCK CHEVY HEADS. Small Block Chevy 220cc/72cc. Read More & Open Chamber Chevy BB Large Port Iron Heads TPE . rect port head casting number 3964291 . W-Series 348, 409, and 427 Cubic Inch Engines 1958 to 1965. . Jul 22, 2012 (Edited) Casting# Mains Deck Height Year 366 CI Blocks #364779 4-Bolt 10.2" 68-90 #399293 4-Bolt 10.2" 77-78 #3824553 4-Bolt 10.2" 66-67 #3855977 4-Bolt 10.2" 68-73 #3904354 4-Bolt 10.2" 66-76 Displacement: Year: Note: Main: Deck: HP Rating: 340220: 427: 72-76: Truck: 4-bolt: Tall: 345014: 454: . The cylinder heads have rectangular intake . [ the '70 LS-5 had #290s, afaik]. 348236. Big Block Chevy Cylinder Heads Open vs. Closed Chamber - A good way to describe big-block heads is to categorize them as open or closed chamber. Free shipping for many products! . For more information about the 348/409 W-motor cylinder heads, select a head casting number from the drop down menu and click search: Cylinder Heads: If you would like to view all the cylinder heads in . . Pontiac/Chevy Aluminum Small Rectangle port. BR X Series/20 SR 20 Series Cylinder Heads/20 Race-Rite Big Block Series/26 Race-Rite Big Block Series/24 BB-1, BB-2 and BB-2 Plus Series/26 BB-2 Xand BB-2 Xtra Series/26 More.. Small Block Ford Compatible Heads Menu Toggle. TPE Cl. big block chevy blocks and heads have HI PERF or something similar cast into them. Rebuild to stock specs. Block casting number 361959 came with either two- or four-bolt main bearing caps, but almost invariably came with a cast crankshaft and dished pistons.
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