or affixing an identifying number or symbol on major parts. Here are the stampings: 18F232087 V0603HN As far as I can tell the VIN numbers are stamped on the left, and the block casting numbers are stamped on the right. Quickly, A = Chevelle, F = Camaro, X = Nova. This series of seven to eight digits begins with a letter and is stamped directly on the engine. Now that we know this engine is a 350, it helps us narrow down the exact configuration, as noted from the casting numbers and suffix code. If you already know what you're doing, Chevy Engine Codes are listed down below. //For full source code, and Terms Of use, visit http://dynamicdrive.com This is my opinion, and the generally accepted norm: The engine ID code, on the other hand, is not a raised part of the casting but an actual stamping into a machined pad. These numbers are stamped into a machined pad in front of the passenger side cylinder head more than not its covered up by the alternator. The folks over at NastyZ28.com have managed to compile quite a few Chevy code databases online for small and big block V8 engines, so if you want to dig into your small block a bit more, give them a look. var iframeprops='width=950 height=250 marginwidth="0" marginheight="0" hspace="0" vspace="0" frameborder="0" scrolling="no"' Some had better heads, more compression, or even more cubic inches. code. "Main Caps" is the number of bolts holding the cap. The above info represents 1955-85 only. sites such as If it doesn't match - is it correct? The suffix portion tells you the original application, vehicle model, engine RPO/ transmission / horsepower, etc Tim provides more details about them and gives you a great look at them. All these are identified here. sixth month, June. } But numbers correct is not numbers matching. If you think there is something in error, prefix would become "CExA" where 'x' is the year such as CE0A50000. Even All engines are stamped with an engine ID code, consisting of assembly plant code, production technical service bulletins to indicate which engines were to recieve a vin stamp, so who knows what 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. For example, Tonawanda was This ledge is below the deck of the block and the ledge forms the mating surface between the block and the transmission bellhousing. In this case the first letter "T" stands A 1973 motor for instance would be D3, as an example.For example, the Chevy engine casting number 14316379 means; CID: 350, Years: 68-88; Block Casting Number Location. are to stamp the serial pad of all current model service engines with After being stored away for decades, Bob finally finished his big block powered '36 Chevy coupe Having issues fitting headers into your car/engine? home being individually stamped. assembly date and ID letters. document.write('') HOWEVER - the engine code MAY HINT at this fact. 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. The engine assembly code looks similar to this: T0601ED. this date is accurate for federal mandate that engine blocks be stamped You have remained in right site to begin getting this info. The vin code format is stamped onto most engines. Small/big-block Chevy Engine code stamping numbers include the engine serial number (ID code), engine VIN, block casting number, and block date code. If you're looking at the casting # information and it mentions This list of codes is a summarization, it is not complete nor all inclusive. have different fonts, character sizes, and in some cases will be stamped The point of this article is to help you figure out how to decode stuff. Click here to view our promotions! stamping partial VIN information on production engine blocks to meet Four bolt main blocks are desirable in high performance applications because the extra strength of the additional bolts keeps the bottom end rigid and less prone to failure. Many Chevrolet V-8 engines are stamped with a "CE" engine code on the front pad. Date/Suffix Code: insure the numbers were changed for each vehicle as necessary. In 68-69 model cars, the serial (VIN) number of the car the engine was installed in is stamped Your email address will not be published. You need to decode the engine assigned the sequence range of 50,000 to 79,999 so if more engines were A Chevy engine serial number is a unique ESN (electronic serial number) used to identify every Chevy vehicle. If you're looking at the engine code - this is already known. compliance until sometime midyear, 1968. Where Are Chevy Small Block Casting Numbers Located? You can also find the date code situated on the passenger side of the block near the freeze plug (in some earlier production blocks from the 60s). (1 = Chevrolet, 3 = 1973, N = Norwood, 100001 = Production sequence of vehicle VIN). The clock is a circle of 10 dots, one dot for each hour of a shift (usually 10 hour shifts). The prefix portion of the ID code tells you the engine assembly plant code, and the engine's assembly In 68-69 modelcars, the serial (VIN) number of the car the engine was installed in is stamped next to, or under the engine code ID. It can be done on any 3970010 (or other) block. it which serialized that particular engine. Good news is 99.9% of the time - all blocks are set up this way - regardless of what transmission was being used. These casting numbers are well known and documented on several prominent websites such as Mortec and through numerous Chevy ID code books. VIN code format Example: 13N100001 I'm trying to decode the engine code stampings on the front lip of the cylinder heads on the passengers side of the vehicle. The engine VIN I cant find facts on, but the block stamping came back as a 1957 sb, 2 bolt main possibly a 265 or 283. var iframeprops='width=950 height=250 marginwidth="0" marginheight="0" hspace="0" vspace="0" frameborder="0" scrolling="no"' Engine ID Code Example: V0101CLJ - (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code) for Chevrolet Case or "CT" for Chevrolet Transmission. Exchange" and "Crate Engine" was used on blocks that Real idenity is the number stamped on the passenger side head coding it to a camaro and such, but those numbers can be forged. These will have a stamp something like "CC" The plant, date, and engine ID codes were stamped at the respective It is a direct replacement for the original equipment. On a small block Chevrolet, the casting number is found at the rear of the block on the driver's side (as is with Chevy's big block engines). Chevy small/big-block date codes are either alphanumeric or numeric. Numbers matching is important when you're trying to decode a Z28 or Super Sport where the VIN won't identify the vehicle as such. This topic can be somewhat confusing, especially with the amount of information available and the interpretation of it. Everything else lines up - gmh dealer codes But numbers correct is not numbers matching. ", V8 Engine Block Casting Numbers Required fields are marked *. The GM division number ('1' for Chevrolet) The engine code and partial vin # will accurately nail down whatever the thing is rather quickly, and the other information will fall into line with that. For help go to engine Code help or engine decoding FAQ. E.g. It's important to note that The suffix may also display or hint at the engines displacement and power output. Some have already been mentioned throughout this article and others are listed here as well. The primary pieces of information you'll decode are the Engine Code and Partial VIN. as needed. for an engine factory Tonawanda Engine Plant, either "F" at different locations on the engine block. 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. This Block Carries A GM Goodwrench 350 Crate Engine Casting Number. Sometimes (but not always) the letter "I" Submitted photos by next to, or under the engine code ID. characters into one even line for stamping as opposed to each character - vin 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. other pieces and parts should have been on it, and check those casting #'s. } Again, engine that was stamped "CE" with a 6-digit number following The point of this page is to help you figure out how to decode stuff. holder allowed for consistency in the particular characters used and On the other hand, the vehicle VIN is also used to determine the body style, the engine type, the security code, the platform code, and further details. A "two-bolt" main, or a four-bolt main. Determining the correct flexplate for your V8 Mopar-powered project takes a little understanding of how these engines were balanced. The numbers that follow are the actual assembly date. VIN on all engine blocks(1). var iframeobj=document.getElementById? in your browser's window when reporting it. Again, it either matches Big Block Chevy: Above timing chain cover. TR6060 vs. T56 Magnum vs. CD009 vs. TKO600: Which Is The Best? the most accurate and up to date information to the Chevelle community can nice clean LT1 in a 1971 Corvette My small block has a stamp of T07i9S. Dipstick is in the oil pan. You might see something like this "CE056789" links. The engine serial number in big and small Chevy engines is denoted by seven digits, each symbolizing a specific detail. "2800" is the last 4 digits of theGM part# for the crate engine assembly. Small Block Chevy Engine Block Identification . The engine ID code stamping is located on a flat pad in front of the passenger side cylinder head (big blocks can be in the same location or above the timing chain cover, with inline-sixes stamped on the passenger side of the block behind the distributor). This But if you want to know EXACTLY what If it does - it's "numbers matching", otherwise - it's not. here. compliance until sometime midyear, 1968. were stamped with a partial VIN. Chevelle, Camaro, Z-28, Nova and Passenger with A.I.R. Before a federal mandate that all engine blocks be stamped with a . The optional four-barrel carburetor gives 180 horsepower and 260 lb-ft of torque. hx General Motors standardized this procedure by using what's called 1970 Atlanta example of the partial VIN stamped on the engine pad. 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. Not to say mistakes weren't made as the person responsible had to Engine Code Stamping Numbers. assured the partial VIN stamp was uniformly done from car to car. Some mistakes can be made, but I make every attempt to keep the Thanks http://uscode.house.gov/download/pls/49C331.txt or search the Internet Chevy 327 Engine Identification, Best Small Blocks: #1. Below is a summary chart of the four types of stamping numbers on any Chevy small-block or big-block engine. The Chevy engine date codes are denoted as follows: An example of such a date code is the A72 which means; One crucial piece of information to remember about the year is that more information is needed from the other numbers (serial and VIN). the requirements of Title 49, United States Code, Subtitle VI, Part 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. Corvette, Passenger and Truck 195, 200, 250, 275, 300 & 350 HP 1.9" Outlet A.I.R. Engine Assembly Date/Suffix Code: on this website. Chevelle, Camaro and Nova 200, 210, 250, 255, 290 & 300 HP 2.0" Outlet. by stamping a partial Over the last 50 years there have been some variances to the standard block casting numbers and engine ID codes. randomcontent[1]="http://www.chevellestuff.net/sidebar/random02.htm" The partial VIN will match the vehicles VIN. For example, select "DTR-HQ" if you'd like to find code DZ. example is ED, a 1966 396cid/325hp for a manual transmission. 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. code. The primary pieces of information you'll decode are the; The engine code and partial vin # will accuratelynaildown whatever the thing is rather quickly, and the other information will fall into line with that. And you can check dates. same information about partial VINs on engine blocks also applies to for Chevrolet Case or "CT" for Chevrolet Transmission. The suffix portion tells you the original application, vehicle model, engine RPO/ transmission / horsepower, etc stamped into the pad on the front passenger side of the block. on the front pad of the block deck on the passenger side. one produced in 1971 at Tonawanda with engine serial number 73170. If you're looking at the engine code - this is already known. Is it a 2 or 4 bolt main block? Casting Date Example: E038- (E = Month, 03 = Day, 8 = Last digit of model year (1978)). And/or - you can check dates to make sure everything came together when original. Speedway Tech Talk - Tru-Ram Exhaust Manifolds, Small Block and Big Block Chevy Engine Flexplate Guide, Ford And Chevy Spindle Options For Solid Axle Hot Rods, Built With Speedway Motors: Bob's 1936 Chevy Coupe. The engine has a block stamping #3731548, The Vin No. 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). be for 1968 and later. 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. the General Motors division (Chevrolet's number is "1"), followed What's The Difference Between The Casting Number And Engine ID Code? engine assembly plants while the partial VINs (when applicable) were Small Block Chevy Stamping Numbers The prefix portion of the ID code tells you the engine assembly plant code, and the engine's assembly date (for example, 0701 = July 1st.no year is indicated). "2800" is the last 4 digits - engine numbers Exchange" and "Crate Engine" was used on blocks that is used for McKinnon Industries while "S" Want to know exactly what you have? Date codes consists of a letter, 1 or 2 digits for the day, and 1 This is because numbers like 7 can mean different years like 67, 77, 87, or 97. //Specify IFRAME display attributes found above the timing cover mating surface on the front of the block. E.g. 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 character was placed in a holder and secured before the engine the plant would re-use the numbers using the letter "A" after Big block on the right side of engine above the oil pan rails. compliance of identifying major parts of a motor vehicle by inscribing It's a small block Chevy built in Mexico somewhere near August (or possibly June) 23rd of 1996. Look up what your GM engine serial number means here: GM/Chevy Engine Serial Number Lookup. the location on the block may vary between the plants and years but since a generic block for fitted engine could be used as a warranty or it doesn't. L99 vs. LS3 vs. LS7: Which Is The Best Engine For You? by the oil filter. 3970010. bang, it's a 350. Besides, the location varies between Chevy vehicles due to configurations and model numbers. 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. General Decoding Information one change was made in 1968. Well help you determine the correct flexplate for your Chevy engine in this buyers guide. 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 E.g. In that case Here's the requirements of Title 49, United States Code, Subtitle VI, Part not start until 1968 so any year designation in the engine number would document.getElementById("dynstuff") : document.all.dynstuff Chevelle, Camaro, Monte Carlo and Passenger 110, 145, 155 & 175 HP. Another CE stamping, this one is 066953 from 1970. SBC BBC V6 Chevy Engines Specs and Sizes [With Chart], Chevy Big/Small Block Casting Numbers Lookup. All these are identified here. A CE number indicates a complete engine, or perhaps a short block.
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