Chevy engine block casting number 14102182 has an engine size of 305.
Chevy block casting numbers can usually be found on the rear of the block adjacent to where the block and transmission meet.
As explained by Speedway Motors, all engines are stamped with an ID code showing plant code, production date, and suffix code. The suffix tells you application, original model, Engine RPO, and HP and transmission that were originally mated to the engine. On a Small Block Chevrolet, this stamp is located on a flat pad in front of the passenger side cylinder head, usually hidden by the alternator.
In this sample Engine ID Stamp: V0801CML, the first letter of the stamp tells us where the motor was assembled. The numbers that follow are the actual assembly date, and the last three letter that follows is the suffix code.
Whether you're an old pro or just about to bolt together your first engine, Super Chevy Magazine offers a few tips that might save a headache or two.