Description
Converts one-piece rear main seal on 1986 and newer Small Block Chevy blocks to the old style, two-piece rear seal when installing the old style crankshaft in the newer style blocks
Available for use with both new style oil pan (1986 and newer blocks with one-piece rear seal), and old style oil pan (pre-1980 blocks with driver-side dipstick)
Manufactured from billet aluminium
Includes fasteners
