Rear Seal Adapter
Converts 1-Piece type seal to 2-Piece style for Pre-1986 Crankshafts in Later Model Blocks

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

Rear Seal AdapterConverts 1-Piece type seal to 2-Piece style for Pre-1986 Crankshafts in Later Model Blocks