Zinc alloy red fuel pump block off plate. Fits Chevy big block 396-402-427 and 454 V8 engines and Chrysler/Mopar small and big block 273-440 V8 engines. Also fits Ford, Lincoln, and Mercury with small or big block V8 engines except the 351C 351M and 400. It is designed to block off the fuel pump mounting on the cylinder block when a mechanical fuel pump is not used. include bolts or gasket.