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Engine Works Small Block Rear Main Seal Adapters

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Engine Works small block rear main seal adapters convert 1986 and newer blocks with one-piece rear main seals to accept an older style 2-piece seal crankshaft. The adapter is needed when installing an early-style (pre-1986) crankshaft into1986 and newer block. They are made from billet aluminum and include hardware. Select the adapter needed for your application.

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