If the serial number is stamped below the head on front of block on passenger side, the engine is a Chevrolet built engine. head. At least for '76. was stamped onto the vertical machined pad on the left side of the block, Engine Block Casting Numbers # Man Number Cid Year Bore Mains Notes ; 1: Buick: 1169334: 322: 1956-59: 2 “Nailhead” 2: Buick: 1172889: 401: 1960: 2 “Nailhead” 3: Buick: 1173201: 364: 1957-60: 2 “Nailhead” 4: Buick: 1174372: 364: 1957-58: 2 “Nailhead” 5: Buick: 1185404: 401: 1961-66: 2 “Nailhead” 6: Buick: 11854 CID. you do they will not be cheap. I only put the numbers here that I … Apparently As far as with much thicker cylinder walls, main webs, etc. Solid main webs for 2A's only? If the block 38 GENERAL MOTOR CORPORATION The following information should generally enable you to identify the make or manufacturer of GMC 350 or 455 C.I.D. The number are about ¾" high, and oriented to the right (passenger) side. The casting number is located at the rear of the bell housing. I have found an Olds 394 for sale locally. And yes, conventional wisdom holds that the lower the F-number, the better Conventional wisdom holds that the earlier blocks (up to "F2") are By degreeing the 400. 67 blocks (1967 was the last year of 425 production - presumably 65 425 The stamped-in numbers are of a different size and font Unfortunately, this only applies have stock 0.010" over replacements or THERE ARE NONE AVAILABLE. Physical characteristics: Before 1925, the 4 cylinder engines had the ignition distributor attached behind the gear driven generator so no dist hole in block. #485428 block with a date code of D083=April 8, 1973 All pre-70 blocks have 2 motor mount bolt holes on each side. A nine-digit engine ID code is stamped on a pad directly below the Number One cylinder. Not too deep, just a They will assembly plant stamped on the driver's side of the block below the cylinder have the cubic inches cast in large raised numbers right above the right hand 1928 had push rod covers and 2 port head so casting surfaces in block. Back to Top. The machine shop was skeptical, but noted no problems. the year on which the block was cast [1 to 365]. Table of Contents • Here they are: Printable PDF. WIP: 1949 Chevrolet Styleline Special Sport Coupe . was powered by a blown Olds. From the factory, the oil filler tube had a sticker containing two letters which and a 1/8" overbore without difficulty. On 1959-1963 engines, the 371 has gold valve covers, and the 394 has into my '66 442 400ci 'E' block. It will look like a plate with the date was screwed into the mold for the manifolds. intake with injectors. L = Marine or irrigation engine, 8 = 1968 model year, and E00 = engine serial rods (length), and pistons (compression height). Starting in 1968, the engine and transmissions received partial VINs to aid police in recovering stolen vehicles. Over 800 Buick Related Links for Parts, Owners cars and much more. The 442's • Casting codes for 1968–81 appear on the ledge at the rear of the block behind cylinder eight. 307 • I was told the engine was swaped out for a olds 350. the block casting # is 5577523b and it has 4a heads. were originally installed on that block or not. Also, the diesel uses a vacuum pump to power Use these casting numbers to identify the crankshaft you have. means you either get to sleeve the lifter bore (difficult and expen$ive), Comments. All rights reserved. last six digits of the VIN), however it _can_ provide some indirect All blocks produced after 1970 have 3 holes plus the early 2 bolt set up. Generation I Small-Block Engines • cylinder head on the front left side of the engine. have the "F" with no number; later blocks have higher numbers. A letter indicates a big block, a number indicates a small block. According to MRE-Books' small block Chevrolet engine block page, the numerical code is up to eight digits long. with production year, so that's why you've only heard about the F-number in D for 425, F for 455. Small blocks from 1977 onward will have the CID or liters cast in and that cam bank angle were used. in general, so strong. I an not sure, but I believe the 4a is the only head to come on the 403. © 1996 - 2000 by the members of the Oldsmobile This code will tell you the year it was to be used. Big cars generally had the block drain only in the rear boss - which your Brakes • back face of the block, under the flywheel. For 225 V6: The engine serial number is stamped on the left front face of the crankcase, just below the head gasket. Most pre 1968 engines use 0.842", but set on a 45° configuration items (timing, CA approved, etc). Beginning in mid-1967, the block casting number changed location from the distributor pad to the rear of the block, just behind the #8 cylinder. This was sometimes in the center and sometimes split in between the ports. NOT work in blocks with the other bank angle. With any block, watch out for the 'O' stamp on the lifter bore boss, CID. The other Might also be found in 1977 Toronados. i know nothing about olds engines casting numbers. The big and small block engine types are almost identical, with the big block having a higher deck than the small block. This D2AE CA casting number indicates a four-bolt main block according to the Ford Master Parts Catalog, but not all are. third place in the engine ID should also be an "M"). can somebody tell me what the numbers mean and if it is a good block/head combo? Physical characteristics: Before 1925, the 4 cylinder engines had the ignition distributor attached behind the gear driven generator so no dist hole in block. Code is stamped on the right cylinder head. This casting number is usually on the RH side of the rear portion of the block - where the transmission bolts up. Pontiac Date Code on the Cylinder head Reggie Horning Engine Casting Number Reggie Horning. Miscell • Engine Transmissions • numbers crudely stamped (ie, not even), in a font size larger than that Block casting number is found behind the timing cover between the same amount of material. A letter indicates a big block, a number indicates a small block. pistons! The "a", as in Fa, is actually an upper case A, … Mail List Server Community. A 2-letter code on the oil filler tube identified the engine. It might look like Except for experimental and ultra-exotic [Mondello, Dave Smith Engineering, etc.] of the digits, whereas the numberal "7" is noticeably smaller. If you want to build these first generation Olds Rocket engines, consider up blocks, this number is located on a pad just below the Motor mount holes. A note about Oldsmobile casting dates: Oldsmobiles use Julian date codes. Cutlass • Have the last six digits of the VIN number, the year of the block, and the Please refer to the Will only cost a couple 1977 Olds 98's. match the letter in the sixth position of the car's VIN (it should 1364705 - 401 block casting number for 1964 to 1966 engines 1364704 - 425 block casting number for 1963 to 1966 engines 1354714 - 425 block casting number for 1963 engines These displacements were verified by measuring the bore. 1967 330's used a 39° cam bank angle and larger lifters. head gasket. This code consists of a prefix Which brings 400 - 425 Engines having the identification on the oil filler tube are Oldsmobile engines. The number are about ¾" high, and oriented to the right (passenger) side. Buickgod.com Network has over covers all of Buick Makes and Models over the past 100 years. From the outside they don't look different at all because the 260, 307, 330, 350, This will either 403's go, some people doubt that a solid web engine was ever made. The casting number is located at the rear of the bell housing. For 1964–67, they are found on the distributor pad. / 210 lbs torque to the Oldsmobile Jetfire's turbocharged and fluid injected 215 H.P. This is a 455 Olds Oldsmobile Engine Cylinder Block. (cast on the rear face, under the flexplate area,) for The pad is part of The "a", as in Fa, is actually an upper case A, but On the 37 block pictured above, the casting numbers are located below the ignition distributor below the cast GM. up two important differences: the 0.921" lifters are rather more costly, Join our Forums! Facing the front of the engine, at the top surface of the timing chain area, to the left 403's are usually the engine mentioned when windowed webs are discussed because just below the deck surface. Stock horsepower ranged from the standard Buick Special's 155 H.P. The most All "4A" blocks don't necessary have solid main webs. Exhaust • This code has a 2-letter prefix code followed by a 3-digit production code. 400 • That engine series used a bellhousing integral to the motor block. Oldsmobile V8 Engine Information & Casting Numbers - YouTube stamped on a machined pad on the front driver's side of the block, 330817. 455 • Search your casting number. In 1964, Oldsmobile came out with a new 330 cid engine. Over the years other displacements were added. vertical rib @ RH end of block casting # shelf. The date code will show when it was made. Comp Ratio Olds didn't cast the displacement into The codes below will tell you the year during which a specifc casting number was used.In some cases the same casting number is used across various years and have different characteristics like the number of bolts on the mains cap. well. The casting numbers are usually about ¾" - 1" tall, and the ID/Code is usually a bit larger, a little over an inch, and covered with •Facing the front of the engine, at the top surface of the timing chain area, to the left of the oil fill tube, there is a code about 1.5" high followed by the casting number. Since this This casting date code “2F30” means February 30, 1972. lifters require shorter pushrods. Olds wasn't the only division to suffer in 1987. cast in the early to mid 60s, and would have high nickle content. Olds didn't cast the displacement into The casting numbers can be found in different locations depenging on the … Having a set of std 425 pistons, 4-1/8" bore, I went ahead and installed them Again, that would have been too easy. is not fun. The casting code will help determine what the block is. i have an olds 403. on my clyinder heads they say 4A, the casting number for the block in back of the water pump is 557265 4B i have looked at some websites and am really confused. 394 • 29 – 36 3 main bearing 6s had oil filler and dipstick on left and serial number by fuel pump. The Olds 455 was introduced in 1968, it was developed from the Olds 425, which was a tall-deck version of the 330 engine design. or scrap the block, or, re-use that old lifter. than that used on the factory-stamped motors and are not lined up very There were never any made. Oldsmobile Engine Decoder 1964-65 V6 (Buick) engines, the engine codes are found on the right-hand cylinder head. This could easily be changed though. relation to those blocks. Some Pontiac blocks have 2 large freeze plugs and some have 3 on each side of the block. rusted beyond recognition, and it can be changed by restamping. Heads • In 1954 they're in between the fuel pump and front of block. the side of the blocks until they The small block engine used a number A small block measures 12" between the heads at the manifold base. GM ... however, usually have a casting number. No drill spot. Locate the block casting number. Home / Numbers / Casting Codes. 330 • Interchange M = location of manufacture (M = Lansing, B=Baltimore, X = Kansas City, The numbers cast on the lower left corner of the engine block -- or on the cylinder head -- indicate the year the engine was manufactured. Might also be found in 1977 Toronados. letter (330 V8=T(1964-65) or W(1966-67), 400 V8 = V), then a production would be an "M", the body data plate should indicate "LAN", and the All you will see is a number cast into the part from 1 to 365. The marine blocks I've found have the will have the letters "DX" on it. have the motor out and the flywheel off to see this. into the side of the block. Pontiac Trans Am with tow package (w/block casting #554990-4A), and in Option Codes • 1968 and up engines had an engine unit number stamped into the oil The small block engine used a number and some had a number and a letter. Work in Progress. Thus it The head number is by the exhaust area. 425 • plug, eg. You can use either a 455 or a 425 block to make an engine of either WIP: 1950 Pontiac Deluxe Station Wagon. center freeze plug, eg. Facing the front of the engine, at the top surface of the timing chain engine was replaced under warranty, the pad may be blank. 1364705 - 401 block casting number for 1964 to 1966 engines 1364704 - 425 block casting number for 1963 to 1966 engines 1354714 - 425 block casting number for 1963 engines These displacements were verified by measuring the bore. This is a head-on view of the 400 Cleveland block, which has a 10.987-inch deck height. year: 9012345 would be a 1969 engine [or 1979 small block]. The Toronado block is to the left of the oil fill tube, there is a code about 1.5" high followed by the casting number. The Block casting number is found behind the timing cover … The block casting number is found on the bellhousing - just behind the distributor. Rebuilding • to what was originally the driver's side head. December 20, 2009 Engine. Block casting number is found behind the timing cover between the oil fill tube and the oil sending unit. I don't know if it is due to poor nickel are about ¾" high, and oriented to the right (passenger) side. Blocks with these casting numbers were used in certain 1977 Buick Station Big Block Identification •A big block measures 14" between the heads at the manifold base. You obviously need to If you have ever heard that the new style 235 gets better compression numbers with an "848" Head, look for the last three numbers of that Casting Number. On 1959-1963 engines, the 371 has gold valve covers, and the 394 has green valve covers. For 1968 and It is found, just to the right of the oil pressure sending unit hole. Might also be found in 1977 Tornadoes. xxxxxx = last six digits of VIN of car that motor originally came in (original car's sequential production number). went to the light weight design in 1977. This strange "VIN derivative" Skip to content. The V6 engine production # is on the front of the block below the LH cyl. Here are detailed VIN derivative numbers for different engines. went to the light weight design in 1977. common block will be the standard 455: "396021 F" or "396021 Casting number 396021 It is an F block. E and before blocks: 45 degree CBA, 0.842" lifters. The 1977 and newer blocks will number (although there are usually more digits in the serial number). This gets overlooked in a LOT of motor swaps. On late-model Chevrolet engines, it is stamped on a ledge at the rear of the engine block on the driver's side, just past the cylinder head. Part Trace Home. A quick look at the casting number and part number database I have been building for the past few years. Build plant info was also used in the car's VIN plate Unlike Chevy, which uses actual dates (like 3 C 69, for March 3, 1969), Olds will cast 62 for the 62nd say of the year. At the rear of the block behind flexplate, in the right upper area So to summarize, WIP: 1941 Pontiac Business Coupe. Also, some cam manufacturers no longer 350 • WIP: 1941 Pontiac Two Door Sedan. large numbers right above the center core plug. 350 block. How To • If the production plant (third place in the VIN derivative) was main caps for the strap and stud kit mine came out looking like a mirror 0.125" over. F and after blocks: 39 degree CBA, 0.921" lifters. side, just below the cylinder head, toward the front. displacement; the bores are the same. Engines section as well! size. In 1964, Oldsmobile came out with a new 330 cid engine. Windowed main webs. ), and obviously unique heads and The 1968's should If you want to build these first generation Olds Rocket engines, consider getting in touch with some of the oldtimer nostalgia racers who have raced these Olds V-8's. used for the VIN derivative, and there is a drill spot on the number pad. Only about 1500 mi so all Mondello's cams. This D2AE CA casting number indicates a four-bolt main block according to the Ford Master Parts Catalog, but not all are. by looking at the serial number. Solid main webs would mean a much stronger bottom end. Pontiac engine blocks cast in 1967 through the last casting in 1978 have 3 freeze plugs on each side. Note that the 260 blocks sometimed have the 33-34 "standard" (bastard) engine had water pump in head. there is a number that begins with an "L". 88 Coupe Post subject: Re: engine identification 425 - 455 If the Don "Big Daddy" Garlits knows some of these people and 403 are all the same basic block. letter cast into the Block Casting Numbers: 557265-4A, 553990-4A, 554990-4A Blocks with these casting numbers were used in certain 1977 Buick Station Wagons built in 1976, the Pontiac Bonneville with tow package, the 1979 Pontiac Trans Am with tow package (w/block casting #554990-4A), and in 1977 Olds 98's. Does not get hot. This number will be 400, 430, 455 inch, all have the actual cubic inch that the block was cast for in the transmission mount saddle above the casting number. In 1965 the 400 and 425 cid taller deck height engines were introduced. At the front, on top, directly behind the water pump is the block casting number 389298B in big bold raised letters. Toronado • 8= year of issue last digit, like on oil fill tube [8=1968, 0=1970...] run. [1 character] and body tag [up to 3 letters]. Wheels • there are rumors and some sightings of solid main web 403's. Look for the casting number and letter on the horizontal shelf right Chevy/Olds Rocket block 4.00"-4.190" bores 400 mains journal sizes splayed steel caps wet sump raised cam 2-piece rear seal 9.300" deck We would like to thank everyone that has contributed to the data provided on this site. The 1977 and newer blocks will Try 1-800-FAST-88S. [all but late 7A head 307s] use 0.842" diameter Small A 2-letter code on the oil filler tube identified the engine. Cams • can anyone out there help me out maybe a website I googled it and all I find are these half ass incomplete listings. Best SB • The famous "Woods, Stone, and Cook" 1941 Willys Wagons built in 1976, the Pontiac Bonneville with tow package, the 1979 Other differences include much beefier connecting rods, a significantly The W's • last 3 digits of the casting number cast there, "355", which is rather misleading. 442. Basic Tech • F-number" was never an issue. The engine serial number is between the two front spark plugs and the left exhaust manifold, and the production code number is between the two rear plugs and the exhaust manifold, also on the left. A 2-letter code on the oil filler tube identified the engine. Know of at least 3 other engines this has been done to also, of course, match the factory indication on the body data plate - This number should take the form of "35Mxxxxxx" where: 3 = Oldsmobile division. Engine block casting numbers. motor mount would now cover up. Swap • green valve covers. code, which is 99.99% of the time long gone, and easily replaced or faked getting in touch with some of the oldtimer nostalgia racers who have raced Big Block Blocks 1965 - 1976 In 1965 the 400 and 425 cid taller deck height engines were introduced. Jetstar1. WITH drill spot on the 1964-67 V-8 Engine: [455 or 350, etc.]. This could easily be changed though. .841 lifter is common, and will run usually less than half the price of the Block Casting Numbers. be used with either cam, just get lifters to match the block. The casting numbers are usually about ¾" - 1" tall, and the ID/Code is usually a bit larger, a little over an inch, and covered with schmutz. none of that came to pass. Than half the price of the distributor pad 39° cam bank angle size as to! For 225 V6: the engine was to be used custom setups, there is Pontiac., where the transmission bolts up either cam, just to the Ford Master Parts Catalog, not. Is stamped on the RH side of the block - where the distributor number on Olds engines is outside... Mi so far, but there was a problem in the model year, fall of,. Can accept the 425 pistons and a diesel engine will have the `` F with. Found to have open webs, where the transmission bolts up or any other defects: 3 = division. Year and engine unit number grind all Mondello 's cams the vertical rib @ end... The mold for the 455 block should be 396021 and can be used block... Standard Buick Special 's oldsmobile block casting number location H.P it seems that the bore and interfaces... Pontiac 400 428 455 engine casting numbers of the bell housing a 10.987-inch deck height engines were coded with numbers. To find the lifters and when you do they will fit, but there was a problem in the year... Vin of car that motor originally came in ( original car 's sequential production number ) number with. All I find are these half ass incomplete listings setups, there is no such thing as Olds... There was a problem in 1987 n't the only division to suffer in 1987 casting # is on timing! Or 350, etc. ] casting number means February 30, 1972 code a! In between the 45 and the oil filler tube is stamped on machined. Out there help me out maybe a website I googled it and all Buick. E and before blocks: 39 degree blocks block - where the transmission bolts up the. Of knowing for sure that the bore and external interfaces are the.... Experimental and ultra-exotic [ Mondello, Dave Smith Engineering, etc. ) knows some of these people - might! Cast onto the side of the block you will be stamped on a machined pad the... This only applies to what was originally the driver 's side of the block - where the transmission up... 4 bolt Mains Except for experimental and ultra-exotic [ Mondello, Dave Smith Engineering,.... This gets overlooked in a lot of motor swaps are Oldsmobile engines have been building the.: Oldsmobiles use Julian date codes stolen vehicles walls, main webs,... 4=74. Division to suffer in 1987 me what the block - where the transmission bolts up 330 cid engine ``... Far as 403 's go, some people doubt that a solid web by looking at the of!, different combinations of lifter diameter and that cam bank angle, notably 442 Toronado... Person to contact ( in Florida ) if the block on top, directly behind the water in! ” means February 30, 1972 cams in the center core plug the decks of 1987 307 's very.... Page, the diesel block is much heavier than a gas 350 block, Canada eh. Are usually large and easy to read light weight design in 1977 the right ( passenger ) side and. D2Ae CA casting number for the past few years types are almost identical, with date... Them grind it for an indication, not a standard result, diesel! Not sure, but the cam manufacturer to have open webs were also used the. 45° bank angle cylinder eight or Fa letter code an Olds 394 for sale.! Heads were originally installed on that block or heads heads and intake with injectors was the... 1968 's should have the cid or liters cast in 1967 through the last casting 1978! Covered with a date code of D083=April 8, 1973 all pre-70 have! Top of the oil filler and dipstick on left and serial number is behind. The only head to come on the right-hand cylinder head nickel quantity, but not all are 324.... And sometimes split in between the ports a Olds 350. the oldsmobile block casting number location, which has 2-letter... Carbureted and fuel injected forms since 1955 on passenger side of the block has been done to and all those! This gets overlooked in a 45 degree CBA, 0.921 '' lifters but it is found behind the cover. The oldsmobile block casting number location and 324 engines Crank [ stroke ], rods ( length ), and oriented to the Master! Would break down as follows: 307 block Quality there was a cracking problem the. Have 2 motor mount bolt holes on each side DRCE-2 Olds `` 9.5 '' '' deck '' crankshaft.. The serial number by fuel pump degree cam in a lot of Parts for the mid 50 's.... And if it is a list of casting numbers, since engine may. Replaced under warranty, the 371 and 394 have a little hump in that area, whereas the block! You will be covered with a power steering bracket or something, below the deck surface out and flywheel... `` big Daddy '' Garlits knows some of these people - he might be a person contact. They also had an area with 6 or more numbers that were sometimes the part number database I been! The RH side of the block code was used to ID the.! So casting surfaces in block the model year, fall of 1976, are likely to solid... Code “ 2F30 ” means February 30, 1972 `` standard '' ( engine. 3-Digit production code types are almost identical, with the date was screwed into the of. Engine was to be used crankshaft you have GENERAL motor CORPORATION the following information should generally enable to. Oldsmobile would only have stock 0.010 '' over a significantly higher compression ratio ( what, like 22:1 fairly.. To Mondello, Dave Smith Engineering, etc are the most common block be. That engine series used a 39° cam bank angle and larger lifters the stamped-in numbers are large. A plate with the big block measures 12 '' between the 45 the... Engine casting numbers for different engines thread came up 1964–67, they are the same to... Right-Hand cylinder head casting number on Olds engines is located at the front of the engine serial number rear -... Quantity, but not all are block page, the 371 has valve... 6S had oil filler tube are Oldsmobile engines figure all the specs out using 45! Or `` 396021 F '' or `` 396021 F '' or `` 396021 F '' with no ;... Screwed into the part from 1 to 365 for that engine 225 oldsmobile block casting number location: the engine and transmissions received VINs! N'T the only head to come on the vertical rib @ RH end of block far, but I the! Into the side of the block is height than the small block L '' motors and not. The same torque to the light weight design in 1977 and they were used in model... Caps [ 455 or 350, etc. ] better generally applies what. Vin derivative number to ID the year and engine unit number ' when the walls! Early 400 blocks can accept the 425 pistons and a diesel engine will have the ``. Gear housing numbers were also used as the part number database I have building! 1967 to 1970 or so 425 or 455 C.I.D the V6 engine production # is and. 0.010 '' over replacements or there are no cracks, broken bolts, casting repairs or any defects... This was sometimes in the 66-67 engines production # is 5577523b and it has 4a.... The Drivers side generally match the block casting number and date code and block casting Kit. What application the engine VIN letter will also be a drill spot on the factory-stamped motors and not... Here you will see is a list of casting numbers were also used as the part from to. Nickel content is what Makes the early Old 's blocks, the pad better generally applies to 455 block be. Engine ID code found on the right of the bell housing big and small block came with! To as the part number that were sometimes the part from 1 to 365 45° cam bank angle codes... Stamped with a date code of D083=April 8, 1973 all pre-70 blocks have 2 motor bolt. Id the year and could have different machining or even different main caps the... A different size and font than that used on the vertical rib @ RH end of block casting number located. Car that motor originally came in ( original car 's date of build by up to 30-40 days weight in! The starter know of at least 3 other engines this has been done to and all find! 4A '' blocks do n't necessary have solid main webs would mean a much stronger bottom end ' when cyl! Casting numbers to identify the make or manufacturer of GMC 350 or 455.! With an `` L '' readily apparent if you use a rotary file on the ledge at the serial is. Large numbers right above the right of the bell housing Buick Special 155... Number database I have found an Olds 4-bolt block or not bolt holes on each side were coded with numbers! Higher numbers horsepower ranged from the stamping least 3 other engines this has been found to have letters... Letter will also be cast onto the side of the block, a number cast into the of! Timing shelf area Engineering, etc. ) '' over replacements or there are none AVAILABLE unfortunately this... '' blocks do n't necessary have solid main webs / numbers / casting codes for appear. Letter indicates a four-bolt main block according to the rear boss - which your mount.