Fel Pro 1 Piece Oil Pan Gasket 1965-1990 GEN-4 Chevy bb 454 427 366 (1 Piece Rubber) (Gen IV Blocks);

Fel-Pro BBC 454 427 366 Chevrolet 1965-1990 GEN 4 one piece molded rubber oil pan gasket. Easier to install than multi-piece designs.Eliminates corner leak paths. Silicone rubber extends gasket life on these engines.