ST 69 13637 ATL209472
TR 756 53 LB
01D

Engine code is TO312ID, Not 100% sure about the last 2 letters, but looks like ID. I couldn't read the rest of the numbers on the pad. It is supposed to be a numbers matching car. Checked the casting numbers on the exhaust manifolds. They are for a 71-72 car.

Thanks, James

"ID" code was used on;

1966 Chevrolet Passenger ID 427 425 Manual 4bbl
1967 Chevrolet Passenger ID 427 425 Manual 4bbl