CHEVY SMALL BLOCK STAMPED NUMBERS SERIAL NUMBERS
CHEVY SMALL BLOCK STAMPED NUMBERS SERIAL NUMBER
CHEVY SMALL BLOCK STAMPED NUMBERS FULL
CHEVY SMALL BLOCK STAMPED NUMBERS CODE

The thing that made a typical 350 block into a 302 was a special crankshaft, with a shorter stroke. Keep in mind that 302, 327, and 350 Chevy V8 engines all used a 4' bore block. In researching the casting number book I wrote years ago, I learned a lot about Chevrolet casting numbers. It is the same block used for the ultra common 350 V8. It is one of the most common casting numbers for small block Chevy V8 engines from 1969 well into the 70's. They mandated this format in 1972 after abolishing a longer form that used letters like NOR to show Norwood instead of the current N for Norwood.īelow is a summary of all the letters and numbers that point to the specific assembly plants.NO, that casting number does NOT necessarily indicate that you have a 302. The assembly plant information is denoted by the third letter, which can be a number in some vehicle models. 100001 = the last six digits of the Chevy 1973 vehicle’s VIN.012345 = The last six digits of the vehicle’s VINĪnother example of the engine VIN is 13N100001 which means:.Last 6 Digits = Equal the last six digits of the vehicle’s VINįor example, the Chevy engine VIN 17N012345 means:.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. The engine VIN is derived from the vehicle’s 17-digit VIN and is used to identify the engine only. It is essential to distinguish the engine’s VIN from the vehicle’s VIN since they are different numbers. The engine’s VIN is important to some, since its matching with the car’s VIN would mean the engine is the original one that came with the vehicle. The engine VIN also contains six digits that are used to denote the last six digits of the vehicle’s VIN. The Chevy big/small-block engine VIN (vehicle identification number) is a combination of digits that indicate the type of vehicle the engine is installed in, the model year, and the assembly plant. Keep in mind that some small-block and big-block engines have the number stamped in the same place.īonus: SBC BBC V6 Chevy Engines Specs and Sizes SBC/BBC Engine VIN: Explained What Is Engine VIN?

CHEVY SMALL BLOCK STAMPED NUMBERS SERIAL NUMBER

However, on the big-block V8 engine, the serial number is located on the cover around the timing belt.

In other vehicles, you may find the serial number located on the flat block just above the timing cover (in some trucks or marine blocks.)īesides, the location varies between Chevy vehicles due to configurations and model numbers.įor example, in the small-block V8 engine, the serial number is located on the passenger side of the engine’s cylinder heads. The engine serial number is located at the front passenger side of the block, right next to cylinder #2. Look up what your GM engine serial number means here: GM/Chevy Engine Serial Number Lookup Engine Serial Number Location

CKX – indicates the vehicle it belongs to, which is either a 1973 Camaro, 1972 Corvette, or 1976 Corvette, all with 350 cubic inch displacements, and power outputs between 145 hp and 200 hp.Īnother example is the serial number T0525ED:.

15 – denotes the day of the assembly, which is the 15th.

10 – denotes the month of assembly, which is October.

V– the production assembly factory in Flint.

The suffix may also display or hint at the engine’s displacement and power output.įor example, the engine serial number V1015CKX is decoded as:

CHEVY SMALL BLOCK STAMPED NUMBERS CODE

The last two to three digits indicate the engine suffix code used to denote the vehicle model and the transmission details. The first five digits are called the prefix and contain the details about the engine assembly factory, the month in which the assembly was made, and the specific day of the assembly.

Last 2 or 3 digits = Engine Suffix code.

4th and 5th digits = day of the assembly.

2nd and 3rd digits = month of the assembly.

The engine serial number in big and small Chevy engines is denoted by seven digits, each symbolizing a specific detail.īelow is the meaning of each of the letters and numbers in the engine serial number: It contains information about the vehicle’s assembly, power output figures, the make and model of the Chevy vehicle, as well as the engine displacement.

CHEVY SMALL BLOCK STAMPED NUMBERS FULL

It is also stamped on a machined pad that is then put on the engine after a full assembly.

CHEVY SMALL BLOCK STAMPED NUMBERS SERIAL NUMBERS

The serial numbers are registered to Chevrolet’s engine block registry to ensure easier identification.

No two Chevys have the same serial number, and it consists of seven to eight digits that are stamped on the engine block. A Chevy engine serial number is a unique ESN (electronic serial number) used to identify every Chevy vehicle.

Chevy small block stamped numbers