I've searched and I know what a Camaro is supposed to have, but I can't find what mine is out of. Information is below. I know it's a 396/402, but out of what -S is St Louis? It also has what looks to be valve reliefs on the top edge of the cylinder bores - only on 1 side. Are these normal or was it being used in a high lift, low clearance setup?

Date/Suffix T0403CTB
VIN 12S247903
Code 3999290

Thanks,
Dan

I've searched and I know what a Camaro is supposed to have, but I can't find what mine is out of. Information is below. I know it's a 396/402, but out of what -S is St Louis? It also has what looks to be valve reliefs on the top edge of the cylinder bores - only on 1 side. Are these normal or was it being used in a high lift, low clearance setup?

Date/Suffix T0403CTB
VIN 12S247903
Code 3999290

Thanks,
Dan

T= Tonawanda Engine Plant
04 = April
03 = 3rd

Code_Year_CID_HP_App:
CTB 1972 396 240 Camaro LS-3 AR
CTB 1972 402 240 Camaro LS-3 AR
CTB 1972 402 240 Chevelle LS-3 AR
CTB 1972 402 210 Chevrolet LS-3 AR
CTB 1972 396 210 Chevrolet LS-3 AR
CTB 1972 396 240 Chevelle LS-3 AR

12S247903
1 = Chevy
2 = 1972
S = St. Louis, Missouri
47903 = Partial Vin

Code_Year_CID_Main_App:
3999290 1972 402 2 Chevelle, Camaro