- SMALL BLOCK CHEVY STAMPED NUMBERS HOW TO
- SMALL BLOCK CHEVY STAMPED NUMBERS SERIAL
- SMALL BLOCK CHEVY STAMPED NUMBERS DRIVER
SMALL BLOCK CHEVY STAMPED NUMBERS DRIVER
Small block casting date is located on driver side rear of block on flange forward of bellhousing. Anyways, that's what that circle thing is (if you happen to see it on something). An arrow points to the beginning of the shift an another dot outside the circle indicates what time of day the cast part was made. The clock is a circle of 10 dots, one dot for each hour of a shift (usually 10 hour shifts). On some Saginaw blocks, intakes and exhausts a "clock" was cast into the block. For example, "NOR" = Norwood before 1972. In 1972, plant codes changed to reflect the VIN code. (1 = Chevrolet, 3 = 1973, N = Norwood, 100001 = Production sequence of vehicle VIN) Chevrolet issued technical service bulletins to indicate which engines were to recieve a vin stamp, so who knows what could have happend (or not happened). Starting in 1970, the serial number is stamped either above the oil filter, somewhere on the block pad (in front of the cylinder head), or on the transmission flange somewhere.
SMALL BLOCK CHEVY STAMPED NUMBERS SERIAL
In 68-69 model cars, the serial (VIN) number of the car the engine was installed in is stamped next to, or under the engine code ID. The format consists of divisional identification number, model year, assembly plant designation and vehicle serial or sequence number. The vin code format is stamped onto most engines. The final digit could be a year code.Īnother example: A Targetmaster engine (p/n 14009800) built in 1985 could have a code stamped as follows:Ī0198005 (A = january, 01, 9800 = pn, 5 = 1985). "2800" is the last 4 digits of the GM part # for the crate engine assembly. VF292800 - is an example of a over the counter crate engine. It doesn't indicate what the original equipment was. It is a direct replacement for the original equipment. It represents any CID and is used to indicate this particular engine was replaced under Warranty. Note: CODE CExxxx (counter or crate engine) was used from 1968 to current year. This list of codes is a summarization, it is not complete nor all inclusive.ģN - CDR | CE - CMJ | CMK - CUD | CUF - DTM | DTR - HQ | HR - TBS | TBT - TJS | TJT - TXB | TXC - UTT | UTU - ZYĠFC - 9XZ | AAA - CTB | CTH - IJ | IK - MZ | Q - YZ In some cases suffix codes are reused twice or more over time, in this event check the partial VIN code or block casting date code and then see what year the block was made to pin down what application your block was originally used in. For example, select "DTR-HQ" if you'd like to find code DZ. Select the portion of the alphabet for your code. Suffix codes are either alphabetical or alphanumeric. Some engine machining operations (decking) will obliterate the engine ID.Įngine ID Code Example: V0101CLJ - (V = Plant, 01 = Month, 01 = Day, CLJ = Engine Suffix Code)Īnother example: T0830CTY - (T = Tonawanda, 08 = August, 30 = 30th day, CTY = 1970 396 Camaro, 375 hp, 11.0:1, TH400) Engine Plant Code Code The engine date must precede the car build date, otherwise something is amiss. V8 codes are stamped on a pad just forward of the right side (passenger) cylinder head. ENGINE CODE STAMPING NUMBERĪll engines are stamped with an engine ID code, consisting of assembly plant code, production date and suffix code.
SMALL BLOCK CHEVY STAMPED NUMBERS HOW TO
The point of this page is to help you figure out how to decode stuff. 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. You need to decode the engine and see if it matches the vehicle, and if the code signifies Z28 or SS equipment. 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. But numbers correct is not numbers matching. Some folks use these terms loosely, or will say "numbers correct" or something to that effect. If it does - it's "numbers matching", otherwise - it's not. The partial VIN will match the vehicles VIN. This match is done via the PARTIAL VIN stamp on the component. When people say "It's numbers matching" - what they mean is the engine (or other component, i.e the transmission) can be MATCHED to the vehicle it was originally used in. This is my opinion, and the generally accepted norm: 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. The primary pieces of information you'll decode are the This topic can be somewhat confusing, especially with the amount of information available and the interpretation of it. Home name history competition hk ht hg hq hj hx hz vx identification models links Chevy Small Block V8 Engine Identification
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