You will need the Date code on rear of block, one letter followed by 3 numbers. On pad under distributor. The engine block casting number is a 7 or 6 digit number between firewall and block cast (raised numbers) at a 45 degree angle. It can be seen from top.
The head codes are in the center exhaust ports and the head date codes are exactly like the codes on block (size cast) and may either be on the rail of head or under valve cover depending on the year.
Si Vis Pacem Parabellum
1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.