Chevy Small Block Serial Number Decoder

Chevy 350 Small Block Decoder

Chevy Small Block Casting Number Decoder

Chevy Smallblock DecodingDecoding the ID numbers on Chevy Smallblock motors:(Info compiled Ray Buck )Since there are several numbers on the block, we need to identify the ones we're gonna use.The first one I usually use is the block casting number which is located at the back of thedriver's side cylinder head and will look something like: 3970010.The other number is the block stamping ID which is (kinda like the name implies) stamped into amachined pad at the front of the passenger side cylinder head. It'll look something like V0322CMK.Once you have these 2 numbers, go here:Decode the block casting number first to get the general information and then decode the stamping ID toget the specific application information.This page has been visitedtimes since August 15, 2000.