NOS 68 Z28 Cylinder Heads
 

Casting number 3917291, date codes are J 2 7, and J 4 7. These are NOS, never been on an engine. They are bare. They were surface rusted from sitting. I soaked them in evapo-rust, and they look great.They still have the factory paint marks on them. Asking $500 plus shipping Mike. (314) 640 8992 email for pictures. Thanks SYC