Moroso SB-Chevy Rear Main Seal Adapter Kit

Product images may differ from actual product appearance.

Allows the use of 86-earlier SB-Chevy crankshafts and oil pans (with 2-piece rear main seal) in 87-92 blocks (with 1-piece rear main seal). Billet aluminum adapter is machined to accept the factory oil pan seal, instead of having to fill up the adapter with silicone. Includes fasteners, and will work with pre-80 oil pans.