So many people ask me when I’m conducting an auto appraisal if I can confirm the “matching numbers” on the motor and transmission. When selling, seller’s often refer to their cars as numbers matching, but only because most of them cannot be confirmed on sight. FE blocks (12 versions in all) for the most part were not vin stamped, unlike GM cars and Mopar’s. Casting dates is about all you’re going to end up with off the engines. During an on site inspection, these are not possible to see on a small block, unless you brought your tool box! Some dis assembly IS required.