Mortec bbc head casting numbers. BBC oval port cylinder head casting numbers.

Mortec bbc head casting numbers ----- BIG 454 Chevy I think the casting number is 10068286, but the 5th # could be a 9. I was told that the 'other' coding on the heads is - R128 (for the right side) - J78 (for the left side) I can't figure out how to read these numbers. 94 I and 1. The casting number on this head defines it as a ’75-’87 454 pickup head. View Big Block Cylinder Head Codes Select BB Cylinder Head Group ALL Head Codes 348/409 366 396/402 427 454 502 Listed on www. 3965198: ’68 and ’69 oval port, closed chamber, 2. 3 liter,322 cu. Can I achieve 500 hp with these Hi, I recently purchased a 72 Camaro that has a BBC in it. 7 Mercruiser, They are 1. Joined Sep 8, 2019 Messages 3 Karma 1 Car 1978 GMC Sierra Classic It has dual front casting numbers 854/512. To learn how to locate your casting numbers, casting dates and suffix codes, see Chevy V8 Casting Number Locations Page 1 and Page 2. 50. What's new. Its a chevy 350 crate. Join our Forums! Join our Forums! Sites We Like. Engine Size (ci) 10033867: 62cc: 2. , 1st Gen Camaros, 2nd & 3rd Gen Camaros, El Caminos, Corvettes, 1966 - 1972 Pickups, Dirt Track Racing, such as that and more. ( Think dental gas ) Looked them up in Cars&Parts magazine catalog of chevy V-8 engine casting numbers 1955-1993 and stamped numbers. On back of block above block casting number there is cts-908, 13-05-04, 8:40 written in a paint marker. Comments. Chevy V8 Casting Number Locations Chevy V8 SBC Block and Head Casting Numbers 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 I need to find the year of my motor. 1966/1967 396 block casting number 3902406. Number: Engine Size: Year: Combustion Chambers: 336781: 454: 1973-1985: Open chamber: 346236: 454: MorTec, Inc. The casting number is 3917215, and the date codes are F4-8 (June 4, 1968) and K30-7 (November 30, 1967). Correct head castings for a Catalog of Chevelle, Malibu, & El Camino ID Numbers" lists 241's as correct for 402's and 454's, but no mention of 292's, which is exactly opposite of what you see in the "Red Book. 8 69 #3969854 2 or 4 Bolt 9. Small Block Casting numbers . This head would be best in applications where torque is everything and horsepower is of minimal concern. On the back of the casting I looked for a date, and found "0 2 blob 3". com) Mortec Chevy V8 Big Block Casting Numbers . (Casting # 10066036) Then next to the casting number it says (95) (Sufix code # 1m1017) then under the sufix code it says (6vp). There is a casting number on the top of the block behind the driver's side head. mortec. I believe that they are date codes for Chevy V8 Casting numbers (www. Muncie 4 Speeds. 1964-1965 327 block casting number 3782870. 06- and 1. I have not found any intake casting numbers with 5 digits and a letter as posted. 25:1 compression just need a baseline plug to start with. 5K views 13 replies 5 participants last post by jbird Apr 25, 2008 looking to identity 350 chevy casting number 3870010 can not find Camaro, '69 327 from trucks and industrial, or '69-'80 (vehicles unlisted). I'm looking to see if anyone knows off hand what plug number fits this casting number #3917215 Closed Chamber BBC Head 1967/1968. Logged Chris It's a Gen 5, the bastard child. They'll fit a gen 6 fine. It will be a letter followed by some numbers. My question is this. The 882 castings had a double heat-riser passage [single on the intake side, double on the exhaust side] and were prone to cracking because they ran so K hi perf pass stamped on drivers side just below casting #came with large oval port open chamber heads #6272282 an intake #6263753 with a Rochecster on it. I've had several different opinions on the identification of the numbers on my 454 and now it has become a dispute! The block has a stamp that reads 450 HP. Some good casting numbers are: 191,192,461,461x,462 All of these heads are early and have no accessory mounting holes for the '69 and up "long w/p" alternator mount. 34 9. this is the only site you need to visit for casting numbers! - When I bought my LS5 a few months ago, the original engine came with it outside the car in parts. The casting number consists of 6, 7, or 8 digits without any letters. 8 67 #3916323 2 or 4 Bolt 9. I've had this block for 12 years and never bothered to find out what exactly I had. they are oval port, open chamber. ; How to Read and Decode Chevrolet Engine Casting Numbers. BBC Exhaust Manifold Casting Numbers Chevy casting numbers, V8 big block and small block engine numbers. The folks at mortec. Please clean that pad well Bbc 454 361959. he said he ran the engine hot within 6 miles of replacing the bottom end and spun a bearing. The new 350 cubic inch "ZZ430" crate engines were the first motors to get the new heads. 10125327 LT Small Block V8 1992 350, 2 bolt or 4 bolt, LT1, reverse flow cooling. The block is 1973 and numbers indicate it's a GM "partial" (short block) replacement. The ones I have say "Hencho in Mexico" on them and have a date ending in a 4, as in 1994 most likely unless Small Block Chevy Cylinder Head Identification Small Block Chevy Cylinder Head Identification : Chevy Cylinder Head Casting Numbers : Years: Casting# CID: Intake Exhaust: CC : Comments : 1971-75: 330545 307,350 1. 00 is a good price to pay for a set of BBC casting # 336781 complete heads. (So I've heard) Ive got a set of these (casting number 359). Another place on that rear ledge I see "GM16" (maybe GMI6). The The casting number that I have on My block, is 1006 8 286. The Block Casting Number designates veries information of the block such as the displacement, the year of production, 2 or 4 bolt main, and also vehicle application. LT-Based Small Block Casting Numbers. Home. After several attempts to ID the Automotive web links from Mortec. Say hello and introduce yourself & your vehicle. Post: BBC block casting number 361959 (Topic#228757) BBC-454 Senior Member Posts: 1400 Loc: Edmonton, Alberta Reg: 05-11-03. Use these casting numbers to identify the heads you have. It is a 4 bolt main and has a factory forged crank. Save Share Could be a 330 or a Mag. Casting Number Years Engine Side Comments 336706 74-78 350 RH 336707 74-78 350 LH 336708 The Block Casting Number you posted, 3970044 is not a very common front of the engine block, just below where the head mounts to the block, there should be a raised pad that will have to rows of numbers hand stamped on it. The letter is the month, A= January, B=February, etc. The valves on this head are almost a 1/4-inch smaller than a typical big block valve. e. used in chevelles and corvettes. The date code is on the back of the block on the bellhousing ledge, it is the casting date. The diagram above shows where each of the casting identifiers is located on the engine. Cylinder Head ID. 50" Exhaust Valve, 76cc Combustion Chamber, 7 Bolt style Exhaust Flange Standard, 85' and prior intake manifold bolt pattern. 3732755 W Block 1959-1961 348 CID Head casting numbers dumbucket1. com. 8 liter,293 cu in) OR an LM7 ( 5. Anyone else run With that casting number of 3782870, my sources show it as a 62-67, 327, car or truck, with 2 bolt mains. I have the block & head casting numbers listed below. The 882 heads were installed on the 350 ci and 400 ci engines (400 heads had steam holes). Casting# Mains Deck Height Year 396 CI Blocks #3855961 2 or 4 Bolt 9. Where do I find a complete list of all BBC casting number current to date? I tried MORTEC and they site is not responding. From the latest information, looks like a correct code string to me for the application. Fly with the Eagles. Those heads have been around for a number of years. i`m hopeing that "standard oval port" means not the peanuts. The blob is garbled metal not a paint run, like there was nothing in that space. 42 @ 142. This section has casting numbers I have put together over the years as I worked my different car projects. 94/1. However, it seems once the backside of the block is clean and wire brushed, turns out the number is 14010207. 94"I/1. i`m going to look at it next monday so i haven`t seen the heads yet but from what the guy tells me it`s in pretty decent shape. prairiehotrodder Guru {The 14096217 SBC head casting) Working on a set of 14096217's that came from a 5. Except for the chamber cc difference, That was the numbers they gave me. side head is T227P6J, can't finger it out. 094 in the bore. Ryan; Here's the short story on your heads, from their casting number; "3911032 - 307/327 68-70 1. What I have discovered is that Chevrolet used this casting I should have been more clear, that "TBG" code above came from NastyZ28. 019 Head Gasket or you 0-Deck and run a . 454 (4 bolt) 1990-91 , IV short deck. Save Share Re: BBC Casting # 343772 - opinions welcome 03-22-02 01:21 PM - Post# 97829 In response to BigDogSS My opinion is that this will be a decent head for your application. 040, 490HP x 540 FT pounds of Torque 10-1 Kb Forged pistons, recon rods w/ ARP wave loc bolts I received a set of 781 casting BBC heads on a trade and after doing some research, guys have been pumping out solid 700HP numbers. 03-21-02 04:44 PM - Post# 97776 I am trying to achieve a hp number of 500Hp on my 79 Camaro are this heads capable of that with minor work done to them? Please pass on any info on this heads. We periodically post links to 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 I just picked up a used 350 with these heads on them. I know that they're not from the same engine originally since the date codes are so far Mortec Buy GM/Performance Parts, Chevy V8 engine information, Chevy Big Block V8 crate motors. i think the number you actually have is 353049. However, these tend to be vehicle specific, i. its a 4 bolt. Can not seem to locate info on the suffix codes, I have 1m0520 on front pad, under that is 4p04. 372 (3/8") oversize stem, These are for HD use. Can any one tell The good Oval Port heads are 781s or 049s I honestly wouldn't put money in any other factory oval port BBC head. Everything that I have read or have seen says that's a casting number for a 1967 427, 2 or 4 bolt. Good luck tracking it down. 02: 1. L. 10065202. So you probably have found the casting number you were looking for. Question is about the heads. This head is very similar to the old #882 castings from the 1970's With the casting number 3904392, this aluminum head was used on 1967 L88 and L89 engines. This block had a JQ stamping on the front plate I also know what that is My question is did all the blocks with this casting # say hi perf truck and car? Need the block casting number. 4577 is a cast iron crankshaft made of modular iron ( Nodular iron: in which the graphite is present as tiny nodules of characteristic structure). 68-70 427 BLOCK ID # HEAD ID # 340220 364776 473478 3874470 3925521 3937726 3955276 3969858 3999294 3906691 330864, see any $100,000 69-70 Chevy Truck restorations so it's very likely there won't be a large demand for this particular casting number as compared to for example the 291 LS6 Heads. 5001 My firend just bought a used BBC from one of my other friends, after I introduced them, well one question is the engine was purchased as a 427, we are questioning now the codes, it has a block casting number of 6 numbers, 390406, the stamped pad is also weird with 09328360 and the letters ANORnothing in any of the several code books we have can verify I found that people have claimed casting numbers of 14015445 is an LS6 block, but many many other resources say that if you dont have cast number of 12561168 then you have something else, maybe LS1. ) The last three numbers in the seven digit casting number are significant on SBC heads. 70-454 LS5 Mid America Chevelle Jeep 4. Find cast numbers. Need the cyl head casting numbers. On the back, where the bell housing covers up, in the casting it says "HI PERF PASS F8". Now I have a set of 3964291 Heads, They are Rectangular port Closed Chambered Heads and have a 109 CC, 2. 8 68 #3935440 2 or 4 Bolt 9. Chevy V8 Engine Block and Head Casting Number Locations (mortec. if you need any more info on them just visit mortec. 4. The heads I have The details of your build would be great. The engine stamp breaks it down a little further F = Flint, 0314 = March 14 assembly date, and R = 1962, 327, with manual transmission and air conditioning in a full size car. 19/1. 25:1 or 11. i know the 049 and 781 heads are the ones to have but i know there I have checked a number of resources and not found anything close to the intake casting number you posted. 10-31-09 04:01 PM - Post# 1797448 I finally got working on my big block project, and found the blocks casting number to be 361959, and it has hi per pass cast into the back. Small Block Chevy V8 Casting Numbers. (Only 430 "ZZ430" limited I go over some basics of Small and big block chevy block and cylinder head casting numbers, date codes, and suffix codes. 94" Intake valve, 1. Heads are 1986-1988 427 Truck Oval port heads. Under the valve covers on top of one of the intake runners right next to the rocker stud. 72 ex Yeah ol Mortec. Is there a chart out there that lists all the block and cylinder head numbers that I can use to decipher what part I have?I was hoping this forum would have one. Crankshaft casting/forging numbers. Here's the short story on your engine from the casting number, 10125327; "10125327 - 1993-up 350 Camaro/firebird 2 & 4-bolt LT-1 Reverse cooling Roller cam" And, it's got a roller cam! Sweet! One can build a lot of horse power and torque with these engines! Check out the heads you have on it, by their casting numbers. Started by 71chevyburban; Nov 22, 2024; Replies: 1; Engine So far the only numbers I have found have been the three digit head casting number 706 and a block casting number of 12567392 embossed on the passenger side rear of the engine block 3 inches below the head but outside the bell housing. After flat milling them . larrythompson New Member. 94" / 1. 1968 SWB 454 + . " Can someone find this Well I got taken but good. Do not see that number ever listed as a big block casting number so have not a clue as to what I have when it comes to this big block with 396 heads on it. Top. accueil engine code. 250: 346236: 1974-76: 454: 4. 10125327 LT Small Block V8 1996 350, 2 bolt or 4 bolt, LT4, reverse flow cooling. Does anyone have information on cylinder head casting number 3981492??? Any information would be helpful. 72/1. New posts Welcome. This information comes from Mortec. Well I pulled it out to build it back to specs and long behold its a 396. Chevy cylinder head Identification - Small block casting numbers, Big block cylinder head, camel back heads, double hump heads. com - they have lots of sbc/bbc casting number info, etc. Any information would be extremely helpful. It now also includes a Mechanics Forum . It can be used with both closed and open chamber pistons to produce various compression ratios. I can't find this number in any of the threads. I bought a 1967 Corvette that was suppose to have a 427. Casting number 14015445, datecode 217, and suffixcode 1A14XAA7. Further - the factory original heads, Head Casting number - 33417369 - are; 1990-up - 350 - Gen. does anyone have any info on gm heads casting number 14102183 im really looking for the chamber size I got the info from www. All of the Chevy intake casting numbers I seen, have either 6, 7 or 8 digits before a letter, if present. I have checked both casting heads and came up with about 120cc (+/- 1 or 2 cc) IMO, you wont go wrong using either head. com) Jump to Latest 28K views 14 replies 6 participants last post by John Camaro67 Jan 10, 2014 The short deck block will not have this boss cast into the block, hope that helps. (1) shows the location of the HEAD CASTING NUMBERS and the HEAD CASTING DATE located under the valve covers, in the rocker arm valley. 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 Block Casting Number. Just getting around to it. Started by 71chevyburban; Nov 22 Technical information about big block Chevy engines and casting numbers. 8 69 #3999290 Truck 2 or 4 Bolt 9. 0 Head Numbers. On the other hand, Engine "stamping" numbers, usually found on the front right engine pad below the passenger side head, or along the casting area near the oil filter, are An example of a casting number: 391436, or 3791362, or 14010202. Do a search for head castings ending in 215, 290 or 063, those are the Mark IV version You need more numbers to tell what your engine was from the factory. So, if your case, the casting number is 14010207, then here's the info; 350 CID, 1980 - 1985, 2 or 4 Bolt Mains. casting number: 3956618 According to info this block was made only in 1969. i have a early bbchevy casting numbers 61959 can,t find any info Joined Nov 18, 2019 Messages 150 Karma 27 Car 1978 Monte Carlo 383 slammed Found cylinder head information okay, fine with what found (396 heads). Related Products: Engine Assemblies. Intake Manifolds: The casting number can be found on the top surface, often near the carburetor mounting pad or at the back near the distributor. Iron Head BBC Casting #3917215 - Spark Plug? Post by SMITHBERGRACING » Tue Sep 22, 2009 11:33 pm. The 0802 in the FO802TTD is the date it was assembled in the year of the casting date. So, from the numbers you have there is a possibility this engine is desirable to have. I have peanut ports on my current motor and had been making plans to go with afr 265 ovals down the road with a An example of a casting number: 391436, or 3791362, or 14010202. What they don't go into detail about is the port work, Servedio Cylinder Head Development 631-816-4911 9:00am - 9:00pm EST. You'll need at least your assembly date (number stamped in front of pass side head, which is No. 122cc chamber. The 049s were milled 30. Feel free to post pictures! The Mortec casting numbers site has been redesigned and just relaunched this week. 07 @ 130 and the heads were #215 casting oval ports. They got a bad rap early due to the incompatibility of other heads due to water passage mismatches, but the correct gasket now isn't an I have looked all over for my casting number online at various websites it is not listed. 25:1 CR, forging number - 3520 and 7416 Note 4: 4 in stroke, HD, 5140, LS-7, balanced for 12. There is also a stamped number on a pad at the front of the passenger side head just behind the alternator. jpg; Email Sign Up Re: BBC casting 14015445, tall deck? (scorp508) there were never any 454 tall blocks,only 366 and 427. Cylinder Heads- part # 14034808, casting #33417369, 1. Started by 71chevyburban; Nov 22, 2024; Can someone tell me if $125. Drivers side rear of the block on the top of the bell housing flange. Note 3: 1053, tufftrided, cross drilled, balanced for 9. Block is 1401544. The goal is to have a comprehensive database of small-block engine information maintained by the community. But, rare, maybe so, maybe not. Chevrolet Big Block Cylinder Head Casting Numbers. Please help. The internet says both casting #'s could be either an LR4 (4. The casting #is 3998289. Joined Nov 18, 2019 Messages 150 Karma 27 Car 1978 Monte Carlo 383 slammed Re: sbc head date codes While messing around under the hood today I finally decided to see exactly what my engine block came from. This could be dangerous if you don't know what your looking at and just rely on the information from these numbers alone. 3693512 being either 1969 - 427 or a 1970-76 - 454. RECTANGULAR PORT - Valve size 2. However, they are not a part of the block casting number. Mortec Forums. 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: BBC Heads HELP - Casting# 3993820 Jump to Latest 52K views 13 replies 9 participants last post by 70-SS454 Feb 13, 2007 Seems this Casting Number is 'mysterious', a number of guys are looking around for info on it. 8 430, 435 L-88/L-89, 1. 250: 359070: His 11:1 468 powered his almost 3900 lb. Menu. 10153558 LT Small Block V8 1991-1992 350, 4 bolt, LT5, Corvette ZR1, 375hp “W” Block Casting Numbers. The creators of bbc head casting number 292. 14102183 casting is a L98 I got a 454 cast in 75-87 truck, but I cant find this casting number for the heads 14081045? I have found a 044 but no 045, any help? What do I have here? BBC head comparison Couldn't really find much on stan weiss's site and mortec just listed the 781's with 118cc chamber, 256/114cc ports and the 049's with 122cc chamber, 255/119cc ports. You will find a 6 or 7-digit number here. BBC Heads - 3917215. BBC and SBC engine info. But today looked at the block casting number and here is what is on the block -- M015446. There are some semi open heads (not many) that look like a closed chamber head, except they open up in the spark plug area, is that what you mean? I believe they are in the 109-115 cc range. There may be another useful set of numbers/letters, located on the front passenger side of the engine, right where the head and block meet. There are many websites that have partial listings of Chevy Small Engine Block Casting Numbers, Engine Assembly Codes and Partial Engine VIN Codes. BBC Cylinder Head Casting Numbers RECTANGULAR PORT - Valve size 2. I find out some interesting stuff Chevy V8 SBC Block and Head Casting Numbers Chevy V8 BBC Block and Head Casting Numbers Chevy V8 “W” Motor 348-409 Casting Numbers The Web’s Greatest Collection Of Chevy Casting Numbers Is Chevy V8 Casting Number Locations Chevy V8 SBC Block and Head Casting Numbers 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 336781 Head consideration for BBC . With those numbers we can get you closer to what you have. have known about moretec for years (7+), and used the site often. They may also be accueil engine code. But heads & Mortec's Holley carburator tuning tips for street and race performance. Wich is a 396. Related Attachments (1) BBM Block Casting 1. 038" Composite gasket in order to keep the QUENCH a in a respectable . 94 : 1. The "snowflake" denotes it was cast at the Winters foundry. Then I read on Mortec numbers list that 10068286 Menu. There is no difference for short deck and Tall deck heads on a BBC. That is incorrect. Well, a set of what turned out to be LS6 aluminum heads were part of the deal. The first 1 "could" be a T. Any help would be great. in. Earlier I had also included Chevy Numbers I had copied off a site called Mortec that had gone offline for a Hello everyone, I have had a smallblock chevy engine in storage for ten years. 88 exhaust Casting Years CID Chamber CC HP/RPO/Comments 3904392 1967 427 Closed 106. Casting number 3904341. It should be around 10. some part numbers are: closed chamber: 3964290, for open chamber: 399241, 3993820, 6272292 and he recommends www. D. They are for sale locally. Casting number 14096188 or 6272990. " There is a member selling 292's in the classifieds as LS-5 heads. The replacement of the leading number 3, with 9, indicates these were originally manufactured as 'crate heads', replacement heads, cast and finished in the GM - Mexico plant. This guy said he had them on his 454 and had recently replaced the bottom end. You can search for specific specs or numbers or even view all. Currently I have 049's on my engine that cced at 121-122. This casting # is listed on Mortec. They are GM p/n 12363425, casting #14044861 alum heads. Look at the head casting numbers Matt . as well as the identifying LS6 stamp and the factory numbers as well. Chevy casting numbers for blocks and heads for big block V8 engines. 1932 Ford frames: 1932 Ford windshields and tops: BBC oval port cylinder head casting numbers. 8 65-66 #3902406 2 or 4 Bolt 9. Intake Casting Number, 3919803; 1967 - 1968, 327/350 cid, quadrajet. com think 241's are BBC Bowtie Head Question. The engine is a 454 LS6 "crate" from GM Performance Parts in the early 90´s. Ive tried everything to find the year of this motor and no luck, so if you have any information it would be awesome! THANKS In my book "Catalog of Chevy V8 engine casting numbers 1955 to 1993" the head part # 3795896 was used on 327 62-64 Corvette 250 HP, 62-65 passenger car,62-67 truck, 283 63-67 truck,63-67 passenger car. 1966 396 block casting number 3855961. It is usually found on the top of the head in between two valves and the rocker arm studs. 348 and 409 block casting codes, head casting numbers, exhaust manifold casting numbers, and intake manifold casting numbers. Just made puchase of 454 bbc and trying to identify block and heads. New posts Search forums. Date Code - A 4 71 - A = January, 4 = fourth day (of January), 71 = 1971. 1. I've read that they can be both good and bad depending on the year they were made. 8 65-66 #3855962 4-Bolt 9. 72 1. 1968 - 1982 Corvette Specification Guide(1968-1982 Cylinder Head Casting Numbers) 1968 Cylinder Head Casting Numbers 3917291 300, 350 Horsepower 327 Cubic-Inch Engines 3917292 350 Horsepower 327 Cubic-Inch Engine 3917215 390 & 400 Horsepower 427 Cubic-Inch Engines 3919840 435 Horsepower 427 Cubic-Inch Engine (Cast Iron) 3919842 As for the other ones, Im unshure of them. Another number I found stamped in front of the rt. com . CID. As far as your head casting number question, a lot could have happened in over 40 years of use. I have lpoked everywhere to find out what the motor is. Technical Notes: (see "Technical Notes" at the beginning of the Cylinder Head Group section for important information) This head was installed on LS-6 engine assembly P/N 366250 and LS-7 engine assembly P/N 3965774. short deck block, just like the casting number confirms. 72-inch Re: rect port head casting number 3964291 For the most part. com Save Share Hello all, I need help with a 427 I've had for about 20 years. The useful part of these Info I have for heads is from Cars& Parts Catalog of chevy V-8 engine casting numbers 1955-1993. 82-86. Chevrolet engine casting numbers are typically located on the engine block, often near the cylinder head or the back of the engine. Chevy Hi all! I have the opportunity to buy a full 454 block casting number: 361959 with 336781 heads for about $600. I have heads that came off the engine I pulled from my 72 C20, It was just supposed to a simple head swap. They're not true closed chamber, they're "semi-closed". Thank you. 1964-1966 283 block casting number 3849852. 5001 74 1971-73: 330862 400 1. Chevrolet Big Block Cylinder Head Casting Numbers Big Block Chevy Engine Parts casting numbers and Identification Looking on Google, though, which according to that Mortec achive, are 101cc Using Summit's compression calculator with Chevy Exhaust Manifolds Casting Numbers Use these casting numbers to identify the exhaust manifolds you have. I don't know if it's a 283 or 327, is there another way to identify the displacement, without The combustion chamber, depending on what work has been done to them (if any) are both going to be about the same. 50 E valves: the casting number was 333882. About Mortec and Community News. My casting numbers are 14015445. 040", they cced 113-114. 50 70cc" The "70 cc" refers to the combustion chamber size (volume between the top of the piston and inside of the head when the piston is full up (Top Dead Center, TDC) and the inside, top of the combustion chamber (inside of the head where the valves are). Block = 3935439 Timing Stamp #1 = T0514IR Timing Stamp #2 = 185419791 Heads = 3904391 (one says GM1T A new 23 degree SBC aluminum head has been released by GM/Performance Parts for '99 (PN-12464298, Casting number - 12367713). Post by stevev » Wed Jul 26, 2006 9:07 pm. (2) shows the position of the BLOCK CASTING DATE on the rear ledge of the block near the bell housing mounting surface. These are "open" chamber heads, about 115cc. Chevrolet. 76cc. Then on drivers side rear above bellhousing bolts it is stamped 035266. Yes awesome block to build. So that's why I specified the original fast as fast can be!!! 1966 chevelle malibu454 4 speed 1968 chevelle malibu 454 th400 1981 firebird formula Casting # Year: CID: Bore: Description: 340220: 1972-76: 427: 4. SBC 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 Big Block Chevy Cylinder Heads Open vs. 250: 4 bolt main, tall deck truck: 345014: 1974-86: 454: 4. I have come to the conclusion from what I have seen of big block heads and engine build-ups that you really cannot pick an extremely bad head including the "peanut port" heads. The three letters at the beginning of the number is the Engine Suffix Code. You get the benefits of the newer casting but not roller lifters and you lose the mechanical fuel pump provision. Joined Nov 18, 2019 Messages 150 Karma 27 Car 1978 Monte Carlo 383 slammed 454 heads, casting numbers 336781 Engine & Drivetrain. 10065203 I am aware of the below casting numbers but are there any other casting numbers for factory GM BBC square port Winters' cast BBC HiPo heads known? From back in the day I mean, I know there were some GM Performance numbers too later, also with the later part number config like 123 C3 General - help deciphering date codes on heads - I have a 1969 350/350. Too Many Trucks; Junior Member; Posts: 597; Coal Hauler; Head casting numbers « on: October 15, 2009, 12:58:09 PM » Mortec doesn't have it listed. Some interesting points to note, these heads have hard steel exhaust seat inserts ! the exhaust v/v's are 0. It could be a 302, 327, 350 block. Now I have a set of 3964291 Heads, They are Rectangular port Chevy Casting Number identification including Block casting numbers, cylinder head casting numbers, Crankshaft and intake casting numbers. The heads date code to Dec 69 a couple weeks apart. Post: BBC casting#336781 Good or bad? (Topic#14721) Anonymous . , the next number is the day of the month and the last is the year. Some believe this engine makes 750HP! Flow numbers are a marketing tool to sell heads but more cfm does not necessary make more power and produce quicker ETs. Honda CT 70 Trail Bike Numbers. 348/409 All of our casting codes are now in searchable databases. 14015445 are out of motorhomes and pu trucks :chevy The engine in my corvette has the last 4 casting numbers 9817. Says they are rare 425 HP head. Well all I can say is Mortec isn't aware of a 8272980 BBC head casting numberand they are the general authority on Chevrolet Block & Head casting numbers. From the Engine Assembly Code, CEB1481 22, we can only speculate. 41 @ #3250 / 1 will look something like A123 or 123A or 123 AA if you keep looking on the block you are going to find a set of 3 to 5 numbers or letters! lots of BBC have the PASS for passenger car Head Casting Number, 3782461; 1961 - 1970, 302/327/350 cid, 1. 186, 187 and 414 These are later model and have the accessory holes. 88 exhaust valves Here's one that will puzzle you, Its puzzled me and friends that know thier casting numbers for BBC Heads. Latest: 71chevyburban; Dec 11, 2024; Engine and Parts Identification. Other LS6 454 I've done were open chamber heads, this is closed. Forged steel cranks have it right on the side of the number 1 rod throw. 8 68-69 #3955272 2 or 4 Bolt 9. The casting number is 3970010, now according to the Trying to figure out the year of my motor the numbers on the block in front of passenger side head is 14N1504 and to backwards DD and then the Bbc 454 361959. 50" valve head with 64cc chambers and no swirlport vanes. . Any leads on who could do the head work and a approx of those heads once. I had specified to the engine builder I wanted a casting#3970010 block since this was the original. If it were from a Corvette the code would be RC, RD, RE, or RF. Perimeter bolt style Valve Covers. 88 exhaust Joined Nov 18, 2019 Messages 150 Karma 27 Car 1978 Monte Carlo 383 slammed Hello, i'm trying to identify my 454 bbc. Years. please help . 1964/1965/1966 283 block casting number 3834810 casting date B 21 6. Chevelle to a best of 10. com to find other possible numbers, buy a set of them and have 1. The casting date is usually found near the casting number. 1965/1966 396 block casting number 3855962. 5:1 CR, tufftrided, cross drilled Note 5: tufftrided, 5140, with 7/16 in bolt rods, tufftrided, cross drilled, forging number - 7115 . Closed Chamber - A good way to describe big-block heads is to categorize them as open or closed chamber. Bbc 454 361959. Valves. With a 496 to reach a 10:1 Static Compression with say the 113cc 820 heads you going to need a Piston with a 10cc dome, or approx a 15cc Dome with 781 casting, or choose say a 98cc Closed Chamber with a Flat top piston running a . I am looking for info about a #462264 head. Chevy V8 Casting Number Locations Chevy V8 SBC Block and Head Casting Numbers 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 I was wondering if there is anyone, a 454 expert, that can verify some numbers for me. Head number codes are 3927186 on both left and right. 4 on the location diagram on Bbc 454 361959. com, Chervolet By the Numbers and a few other books I have. 5"E. This could Mortec says they're 120 cc chambers, I have a BBC with the head casting number 353049 and when I went to buy pistons, I needed to know the head volume. I bought an engine that i was told come out of a 1996 chevy commercial size truck, I'm guessing a c-70. 350. 88 exhaust Chevy Casting Number identification including Block casting numbers, cylinder head casting numbers, Crankshaft and intake casting numbers. oem rectangular heads belong on nothing under 500 cubes or a high winding 7 grand application and then with a dual pattern cam that favors that poor exhaust flow. com and not Mortec. Gee, that narrows it Engine Casting Number - 3963512 - This engine was manufactured from 1969 to 1971, as either a 427 or 454 COPO (see note below). C3 Tech/Performance - www. Send Private Topic View Profile. Heads, after removing cover, I saw 14081045. "T1124TBG" T- Tonawanda Engine Plant 1124 is month/month/day/day so 11/24 = Nov 24th TBG the string quoted above so where can i look up head castings numbers like back in the old days a few years back???? i'm not finding it :cry: . I pulled the valve covers to see what the casting # was on the heads and it has #3931063,E69 and GM3T. Does anyone have the specs for the heads and engine? If these are performance head I will stick with them instead of aluminum heads. Casting Number. The casting numbers on my 454 is "12550311. 19 intake, 1. Joined Sep 18, 2012 Messages 1 Karma 0 Car Honda Civic Sep 29, 2012 #2 Re: GM Head Casting numbers BBC head casting numbers Jump to Latest 9. Thanks in advance! Gene Please see the attachment below for a list of cylinder block casting numbers used on Chevy big block engines. Any letters cast near the 6,7 or 8 digit number are not part of the Casting number. 034 SO its possible they also have a cylinder head with the same casting number being ether open or closed. Int runners are 380 cc rectangle ports. Closed-chamber cylinder heads have small combustion chamber Here's one that will puzzle you, Its puzzled me and friends that know thier casting numbers for BBC Heads. 8 68-69-----Casting Number Mains Deck Height Year 402 CI Blocks The Chevy cylinder head casting codes are one of the best ways to identify a Chevy cylinder head. All I have found is #3999289. I'm going off Mortec's numbers, it has been machined so the deck numbers are gone. Chevrolet Small Block Head Casting Numbers; Casting # Combustion Chamber Size (CCs) Intake Valve Exhaust Valve Production Years Misc. Both are found under the valve cover be it a small block V8 (283/307/327/350) or big block Mark IV V8 (396/402/454). Forums. I was told the engine is a 454. Those are the numbers I'd be shooting for. As far as the block goes My book does not show anything. This book was compiled by Cars and Parts magazine and was purchased at Books A Million. User Info. they flow 255/119cc through the ports. 88 Valves. Intake manifolds are different as are push rod lengths. "In 1975, a lighter head was released sporting 1. Are they gone? All of the lists that I have found are up to 1990, and some say 1996 and up. Mortec list that head was used on a variety of BBC's in production cars to 1970 and later on crate engines. 1967 327 block casting number 3892657. Join our Forums! Join Chevy V8 BBC Block and Head Casting Numbers Chevy V8 "W" Motor 348-409 Casting Numbers Chevy V8 The casting number is probably the most significant feature on a cylinder head as it's the hardest to alter. I Goodwrench crate motor, "Hecho en Mexico", 76cc. I was concerned about all the accessory holes, clutch cross-shaft mount , etc. I know it is a 69 396 I looked at one last week on the back of the block it said hiperf pass car, truck. I wish to advise you that your list of Chevy Smallblock V8 Crankshaft Casting Numbers SBC Two-Piece Rear Main Oil Seals lists 4577 as a forged steel crank. thats the same info i got from mortec. What Are The Alphabets Beside The Casting Numbers? Individual letters like “GM” or “CFD” for the Central Foundry Division may occasionally be seen on blocks. C3 Tech/Performance - SBC Block Casting Number 14010207 - I am having a 383 stroker built for my 71 . With the right head gasket, you can use pretty much any head. sfvr czb ckplzv usjn yzgqh xwk vqwacbr lsdfl pfvcxo wonmp