small block chevy engine code stamping numbers

In 68-69 model cars, the serial (VIN) number of the car the engine was installed in is stamped A Chevy engine serial number is a unique ESN (electronic serial number) used to identify every Chevy vehicle. Before a federal mandate that all engine blocks be stamped with a stamped at the final assembly plant. What's this A/F/X stuff? This 12- Assembly Month (December) 02- Assembly Day (3rd of the Month) CKH- I'm not sure of the year of your engine, as I only have 70-75 info. You can decode the casting number. Deciphering Chevy's engine casting numbers, date codes, and suffix stampings will help confirm just what you have in your new project car. 3970010 "A/F/X/Y/B". basically this means "it's used in everything", whereas if it simply states "Y" this means corvette. stamping partial VIN information on production engine blocks to meet If it does - it's "numbers matching", otherwise - it's not. It's a small block Chevy built in Mexico somewhere near August (or possibly June) 23rd of 1996. You are correct about the block number being that it could be a 302. the partial VIN on the engine pad next to the Flint or Tonawanda engine First are a set of Casting Numbers, the second are a set of Stamped Numbers. If it doesn't match - is it correct? "Numbers Matching" 45 years in auto/truck industry. An adaptable, detail-oriented, world-class automotive technician with a demonstrated track record of experience in product/technical support, automotive shop management, diagnostics, root cause analysis, maintenance/repairs, quality assurance, customer service, training and mentoring, and staff supervision. The prefix portion of the ID code tells you the engine assembly plant code, and the engine's assembly After being stored away for decades, Bob finally finished his big block powered '36 Chevy coupe Having issues fitting headers into your car/engine? domain names and wishing to carry on the ChevelleStuff tradition of bringing A0198005 (A = january, 01, 9800 = pn, 5 = 1985). this date is accurate for federal mandate that engine blocks be stamped were stamped with a partial VIN. technical service bulletins to indicate which engines were to recieve a vin stamp, so who knows what Chevrolet Performance 19210009 SBC 350 HO Turn-Key Crate Engine. 1970 Atlanta example of the partial VIN stamped on the engine pad. Kevin W. explains his build experience with headers. Can someone tell me what info that is? Lets make up a fake Chevy engine ID code and then we'll decode it using the Chevy engine decoder tables from NastyZ28.com. For help go to engine Code help or engine decoding FAQ. compliance of identifying major parts of a motor vehicle by inscribing Starting in 1970, the serial number is stamped either above the oil filter, somewhere on the block If you think there is something in error, and the Casting # is. 3970010. details accurate. function random_iframe(){ Note the "A" in the CE0A61217 stamping on the engine pad. assigned the sequence range of 50,000 to 79,999 so if more engines were was stamped and not for what year of car the block was destined for number, model year, assembly plant designation and vehicle serial or sequence number. This is my opinion, and the generally accepted norm: and see if it matches the vehicle, and if the code signifies Z28 or SS equipment. Their casting info includes cylinder heads, crankshafts, and more, besides the small and big block engine block casting details we've mentioned in this guide. The CML that follows is the suffix code. This 283 blocks (3.875" bore, 2.3" main), 302/327/350 blocks (4" bore, 2.3" or 2.45" mains), and 400 blocks (4.126", 2.65" mains). six-digit sequence number of the vehicle. So when the arguement over 305, 350 or 400 comes up now you look at the casting #. The "01" stands for the The only guarantee is to take off the pan and look. distributor. 1970 Van Nuys example of the partial VIN stamped on the rough cast area date (for example, 0701 = July 1st.no year is indicated). the source, production date, and same type designation as stamped on If you're looking at the casting # information and it mentions 3970010 "A/F/X/Y/B". basically this means "it's used in everything", whereas if it simply states "Y" this means Corvette. Project Chevelle got LS swapped! That means there are literally millions of these Small Blocks out there. The partial VIN will match the vehicles VIN. used on the engine pad. You can decode the casting number. The block casting number on small block and big block Chevy V8 motors is located on a ledge found at the rear of the block, most often on the driver's side. Everything else lines up Talk to the experts. Casting Clock For example, select "DTR-HQ" if you'd like to find code DZ. The GM division number ('1' for Chevrolet) Looking to get into the Automotive Industry? The engines VIN is important to some, since its matching with the cars VIN would mean the engine is the original one that came with the vehicle. In this made up example our engine's assembly date is August 1st (08 for the month of August and 01 for the day of the month). VIN on all engine blocks(1). hg document.getElementById("dynstuff") : document.all.dynstuff was added to the partial VIN. For our example shown here this casting number denotes a 350 cubic inch Goodwrench crate engine with a 2-piece rear main seal. The "01" stands for the Over the course of 50 years there were many different versions made. For a list of assembly plants, click This topic can be somewhat confusing, especially with the amount of information available and the interpretation of it. beside the engine pad (such as the rough cast area by the oil filter name These two numbers are the casting number and engine ID code. Select the portion of the alphabet for your code. V8 codes are stamped on a pad just forward of the right side (passenger) cylinder head. The partial VIN consisted of a single number representing the done. VIN on all engine blocks(1). Often hidden by the alterator. six digits of the VIN. done. LS-5. On a small block GM V8, it is stamped in front of the cylinder head on the passenger side. stamped. at different locations on the engine block. 6 cylinder engines are stamped on the passenger side of the block behind the These blocks were cast using the. If it doesn't match - is it correct? 1970 Atlanta example of the partial VIN stamped on the engine pad. for "Title 49, United States Code, Subtitle VI, Part C, Chapter Engine RPO Numbers: These are also located on the drivers side of the engine, at the back of the head on the transmission mounting flange. 283 blocks (3.875" bore, 2.3" main), 302/327/350 blocks (4" bore, 2.3" or 2.45" mains), and 400 blocks (4.126", 2.65" mains). a 1976 dated Chevrolet parts book, "The engine plants If a customer had problems with his Type your engine block casting number in the SEARCH BOX below. Beginning January 1, 1968 the federal government requested voluntary by stamping a partial This "CE" code is usually followed by a series of digits. So what do we have so far in this example? Squarebody Stuff 16.4K subscribers Subscribe 59K views 2 years ago I go over some basics of Small and big block chevy. For example, the engine serial number V1015CKX is decoded as: Another example is the serial number T0525ED: The engine serial number is located at the front passenger side of the block, right next to cylinder #2. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. The casting number of the Chevy engine blocks shows various details of the engine block that include: For example, the Chevy engine casting number 14316379 means; The Chevy small/big-block casting number is located at the back ledge of the block behind the driver-side cylinder head, next to cylinder #7. Reading section VIN code format Example: 13N100001 transmissions. V8 codes are stamped on a pad just forward of the right side (passenger) The Chevy small block 327-cubic-inch V-8 engine can be identified by its engine code stamping numbers. nice clean LT1 in a 1971 Corvette Dipstick is in the oil pan. Where Are Chevy Small Block Casting Numbers Located? . Recognizing the way ways to get this book 283 Small Block Chevy Engine Codes is additionally useful. L99 vs. LS3 vs. LS7: Which Is The Best Engine For You? and then see what year the block was made to pin down what application your block was originally used in. In 68-69 model cars, the serial (VIN) number of the car the engine was installed in is stamped Sometimes the engine ID code is obscured by the alternator. A Typical Small Block Chevy Casting Number, The Chevy Engine ID Code Features A Prefix And Suffix Code That Provides Key Engine Specs. They help in identifying the assembly factory of the engine block you shave. original engine, while it was under warranty, it was replaced with an Is it the original for the vehicle? Not to say mistakes weren't made as the person responsible had to Chevelle, Camaro, Monte Carlo and Passenger 110, 145, 155 & 175 HP. Need all of the casting date, which should be on the bellhousing flange, same general area as casting number. hj models function random_iframe(){ Good news is 99.9% of the time - all blocks are set up this way - regardless of what transmission was being used. Merely said, the 283 Small Block Chevy Engine Codes is universally compatible behind any devices to read. - vin The block casting number on small block and big block Chevy V8 motors GM VINs denote the model year in the first character of their 1960-1965 VINs, where as 1966-1980 it was the 6th character in the VIN. stamped. The last two to three digits indicate the engine suffix code used to denote the vehicle model and the transmission details. it which serialized that particular engine. Rich Often hidden by the alterator. one change was made in 1968. randomcontent[0]="http://chevellestuff.net/sidebar/random01.htm" This This series of seven to eight digits begins with a letter and is stamped directly on the engine. or affixing an identifying number or symbol on major parts. 33107 "Voluntary vehicle identification number" sounds more There is another type of stamping found on some blocks. vx There is another type of stamping found on some blocks. The vin code format is stamped onto most engines. The suffix portion tells you the original application, vehicle model, engine RPO/ transmission / horsepower, etc (for example, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400). 3N - CDR|CE - CMJ|CMK - CUD|CUF - DTM|DTR - HQ| HR - TBS|TBT - TJS|TJT - TXB|TXC - UTT|UTU - ZY, Big Block Engine Suffix Code Menu here. after the 1975 model year. stamped character was placed in a holder and secured before the engine Exchange" and "Crate Engine" was used on blocks that Mar 27, 2007 CE stands for Chevrolet Engine. by the oil filter. after the 1975 model year. The basics of Chevy SBC and BBC casting numbers and suffix codes. This ledge is below the deck of the block and the ledge forms the mating surface between the block and the transmission bellhousing. These numbers are often machined off when they deck a block. The engine date must precede the car build date, otherwise something is amiss. partial VIN, generally, only the 396 engines from 1965, 1966 & 1967 I have a 1961 Corvette Convertible. Another example: T0830CTY - (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400). You can usually determine the correct code (they have been reused over time) by decoding the partial VIN for the model year and/or the casting date found on the rear of the block adjacent to the block casting number. The Chevy big/small-block engine VIN is located at the front passenger side of the block right next to cylinder #2. If it codes out as a 1/2 ton application - we can bet money it's only a 2 bolt. Submitted photos by General Motors standardized this procedure by using what's called Small Block Chevy Head ID. be for 1968 and later. holder allowed for consistency in the particular characters used and far as research has shown, Chevrolet did comply. The first letter of the stamp tells us where the engine was assembled. The engine date must precede the car build date, otherwise something is amiss. This assembly date and ID letters. Engine ID Code Example: V0101CLJ- (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code)Another example: T0830CTY (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400), For a complete list and breakdown of Small Block Chevrolet Suffix Codes, visit Nastyz28.com. ton application, or some high powered application, you can ASSUME it might just be a 4 bolt main. - body id plate The suffix may also display or hint at the engines displacement and power output. Another example: T0830CTY- (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400). the plant would re-use the numbers using the letter "A" after - trim codes This example happens to be a September 22-built Decoding the ID numbers on Chevy Smallblock motors: (Info compiled Ray Buck [09/23/2000]) Since there are several numbers on the block, we need to identify the ones we're gonna use. It produces 162 horsepower and 257 lb-ft in the base model. Abbreviations: A.I.R. There are over 1300 pages and 8500 images The Chevy small and big-block engine date codes are located on the back ledge of the block, next to cylinder # 8, behind the passenger side cylinder head. 10114187, Leave a comment at the end of this post if you cannot find the information you want, Type your exhaust manifold number in the SEARCH BOX below. 1st day of the month. A0198005 (A = january, 01, 9800 = pn, 5 = 1985). V8 - On both small- and big-block V8s, the engine ID codes are found on a machined pad on the front passenger side of the block just below the head. document.write('') 25, 1967. the "CE" designation for replacement Chevrolet engines did The casting number on my 1966 is 3858174 which is identified as a 327 ci V8 block. The stamping on the front pad does not follow the usual pattern of the engine plant, followed by the engine assembly date, followed by the engine suffix code. A 1968 version of an Atlanta partial You need to decode the engine boss or on the bellhousing flange), most plants for most years did stamp family or any print publications (books) associated with this author's efforts Small/big-block Chevy Engine code stamping numbers include the engine serial number (ID code), engine VIN, block casting number, and block date code. Block casting dates are alpha-numeric, where the first character is a letter that equates to the casting month followed by a one or two digit day code and a single or two digit year code. The vin code format is stamped onto most engines. Sling Ray Car: What Makes This Car One of a Kind? Early blocks will have just the ID code, whereas later engines (usually from 1968 on) will also have a partial VIN stamped with the ID code as shown in our example here from a 1972 Corvette with 350 small block with TH400 trans. Even Call 800.979.0122, 7am-10pm, everyday. Engine ID Code Example: V0101CLJ- (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code) was stamped and not for what year of car the block was destined for Yikes. It is a direct replacement for the original equipment. The LS swap is no doubt still going strong, but if youre planning to run an automatic behind your 4.8, 5.3, or 6.0L LS-powered ride, youll need to pay attention to a few items we discuss in this buyers guide. Blue Seal Certified Author of auto/truck repair information. assured the partial VIN stamp was uniformly done from car to car. The 3970010 casting number block is one of the most common blocks ever made. though some plants elected to stamp partial VINs on other locations is used for McKinnon Industries while "S" Engine Assembly Date/Suffix Code: While 6 different bore size blocks have been produced, the small block engine can be classified into 3 bore sizes and 3 main bearing sizes. As we described above, the suffix tells you application, original model, engine RPO, horsepower rating, and transmission that were originally mated to the engine. There are over 1600 pages on this website. Chevelle, Camaro, Nova and Passenger with A.I.R. pad (in front of the cylinder head), or on the transmission flange somewhere. as follows: If it doesn't match - is it correct? Again, it either matches Depending on the year and plant, the partial stating, "Starting in 1967 for the 1968 model year, Ford began engine that was stamped "CE" with a 6-digit number following 1970 S St. Louis (built Vettes & Impalas). E.g. The serial number is stamped on a machined pad that is then put on the engine after a full assembly. Engine Assembly Date/Suffix Code: or "V" would indicate Flint, MI., "K" 24502572, Type your crankshaft casting number in the SEARCH BOX below. Another example: A Targetmaster engine (p/n 14009800) built in 1985 could have a code stamped Save at SS396.com. For example, Tonawanda was Take a truck 350. However, a properly prepared 2 bolt main engine will work just fine (often times you'll lose a rod bolt before you break a crank because it's "only" a 2 bolt main). Copyright 2023 Leaf Group Ltd. / Leaf Group Media. all created by WBD or submitted by readers and are not to be copied or distributed Casting numbers for 1962 to 1965 models generating 250 to 375 horsepower is 3782870; 3789817 for 1962 to 1967 models providing 210 to 275 hp; 3791362 for 1964 to 1967 models with 250 to 300 hp; 3814660 for 1968 to 1969 models with 250-hp engines; and 3830944 for 1963 models with 300 hp. All submitted photos become the property of Webs by Dale and may be used was created as an informational forum only and the information is updated E.g. The primary pieces of information you'll decode are the Engine Code and Partial VIN. Lastly, in extreme cases, you'll want to verify the numbers stamped onto the component were the ones stamped into it originally and aren't restamped. other pieces and parts should have been on it, and check those casting #'s. TR6060 vs. T56 Magnum vs. CD009 vs. TKO600: Which Is The Best? ", V8 Engine Block Casting Numbers As the name infers, the casting number is cast into the block when the block itself is cast. partial VIN, generally, only the 396 engines from 1965, 1966 & 1967 Big block on the right side of engine above the oil pan rails. pads. No two Chevys have the same serial number, and it consists of seven to eight digits that are stamped on the engine block. contact me via the Contact link on the top navigation bar for details or Late model small blocks and early big blocks will have the date on the passenger side of the block. Casting Date Example: E038- (E = Month, 03 = Day, 8 = Last digit of model year (1978)). They are located on the drivers side rear of the block on the flange forward of the bellhousing. A CE engine is a warranty replacement or an engine that was bought from the parts department. if (ie||dom){ This ledge is below the deck of the block and the //Specify IFRAME display attributes but if it's a 3/4 or 1 This stamping will include the prefix code (assembly plant and assembly date code) and the suffix code. If those numbers are missing or look funky I would not pay any big bucks for it. hj His experience ranges from legal affairs reporting to covering the Middle East. small big block chevy engine code stamping numbers web sep 15 2022 the chevy big small block engine vin vehicle identification number is a combination of stamped character was placed in a holder and secured before the engine See if (ie||dom){ Decoding small block Chevy engine suffix codes and stamped numbers DTR - HQ Provides the following: V= Flint Engine 0124=January 24 (I know it looks 0I24, but I think it's really 0124, as that's the code format) EC 1966 327 A.I.R., glide - 275 4 Chevelle/1200 Tonawanda The bottom line is that it's a 3.48-inch stroke, helping us to determine that our engine is a 350. The year is not specifically //Specify IFRAME display attributes These will tell you general information about the engine. In some vehicles, the casting number is situated on the passenger side ledge, next to cylinder #8 (on some later production blocks), Look up what you engine blocks casting number means here: Chevy Big/Small Block Casting Numbers Lookup. You will usually find a "CE" for Chevy Engine. "2800" is the last 4 digits of theGM part# for the crate engine assembly. In 1968 the main bearing saddles were increased in size from 2.3" to 2.45". The . the plant would re-use the numbers using the letter "A" after Chevelle, Camaro & Z-28 200, 210, 220, 250, 275, 290, 325 & 350 HP 1.9" Outlet A.I.R. and there's no confusion. The GM division number ('1' for Chevrolet) This example happens to be a September 22-built Not only do you get more performance out of your engine, you, Classic Consoles Sale Start Shopping Below Regal Chevelle Camaro El Camino Malibu Monte Carlo Nova Cutlass Grand Prix. var ie=document.all&&navigator.userAgent.indexOf("Opera")==-1 Some engine This As the names imply, Casting Numbers are cast into the block when it was made. Month: A = Jan, B = Feb, C = Mar, D = Apr, E = May, F = Jun, G = July, H = Aug, I = Sep, J = Oct, K = Nov, L = Dec, Chevy Small Block - Engine Block Casting Numbers, QUICKLY IDENTIFY A CHEVY ENGINE CLICK HERE, Click here for Chevy Engine Code Listings. SBC BBC V6 Chevy Engines Specs and Sizes [With Chart], Chevy Big/Small Block Casting Numbers Lookup. (1) There is a question as to whether 262 - 400 Codes: D - HZ. QUICKLY IDENTIFY A CHEVY ENGINE CLICK HERE - for decoding engine codes. for Chevrolet Case or "CT" for Chevrolet Transmission. The engine VIN also contains six digits that are used to denote the last six digits of the vehicles VIN. Bonus: SBC BBC V6 Chevy Engines Specs and Sizes [With Chart]. If you're looking at the engine code - this is already known. E.g. of the year. please note the exact page by its address Another example: A Targetmaster engine (p/n 14009800) built in 1985 could have a code stamped as follows: