Stamped numbers usually begin with a Alphabetical prefix indicating plant of manufacture and production date, check here , http://www.nastyz28.com/chevy-engine-code-stampings.php

Last edited by jalopy45 #4899; 07/07/10 11:01 PM. Reason: fut fin gers

'45 Ford PU
66 Valiant wagon, leaning tower of power.
79 Chevy C10 w/250
02 PT Cruiser Convertable