I have a 427 COPO motor from a 69 camaro. Just trying to get a general idea what it is worth. Casting#3963512. Front engine tag stamped under alternator T0303LM 19S718611. Thx

 

You might input the serial number over at Camaro Research Group in the Orphans forum and maybe the body owner would like the matching engine.

 

That engine came out of a 1969 427 Vette originally. The LM is a Corvette engine code. COPO 9561 (cast iron 425 HP) had engine code MO for auto trans, and MN for 4 speed. COPO 9560 (ZL1 engine) had engine code ML for 4 speed and code MM for auto trans.