I've got a 94 or 95 LA 360 MP crate in one of my cars. On the firewall end of the driver side head is a metal plate bolted to the engine. It's got the MP part number, serial number and a couple other bits of info on it. Dunno if that's how they shipped or it was transferred from the crate it came in. If you've got that tag, I've still got the old catalog and can look it up.