1986 or Older Chevrolet Small Block Rear Seal Adapter
Planning to use an older-style crankshaft in a small block Chevy engine newer than 1986? You'll need this billet aluminum adapter to convert to the original two-piece rear seal design. Includes installation hardware.
1986 or Newer Chevrolet Small Block Rear Seal Adapter
This rear seal adapter for small block Chevrolet engines, is for the 1986 and newer blocks with the one-piece rear seal. It converts the one-piece rear main seal and newer small block Chevrolet blocks to the old style,...