Fits all SB Chevy engines pre 1979 with left hand (passenger side) dipstick 265 283 327 350 383 400 2 piece rear main seal blocks High quality gasket specifically designed...
Fits all SB Chevy engines 1985-93 with right hand dipstick 1 piece rear main seal blocks (rear main seal not included) Rubber construction with internal steel shim/core to help retain...
Fits all SB Chevy engines 1980-84 with right hand dipstick 2 piece rear main seal blocks (rear main seal not included) Rubber construction with internal steel shim/core to help retain...