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Allstar Performance small block rear main seal adapters can be used to convert 1986 and later blocks with a one-piece rear main seal to accept an older-style, 2-piece seal crankshaft. These are essential when installing an early-style (1985 and earlier) crankshaft into 1986 and later blocks. These rear main seal adapters are available in different applications and can be used with a one-piece or 2-piece oil pan, depending on your application. They are made from billet aluminum and include hardware.
( 8 )
$126.99
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$188.99
Stef's rear main seal adapter kits are designed to install an early 2-piece style crankshaft into a late model, one-piece engine block. They are manufactured from billet aluminum and require no drilling or welding for installation.
( 2 )
$128.99
Moroso rear main seal adapter kits are designed to install an early 2-piece style crankshaft into a late model, 1-piece engine block. They are manufactured from billet aluminum and require no drilling or welding for installation. The adapter kits include all mounting fasteners and required hardware.
( 8 )
$249.99
Canton Racing SBC rear main seal adapters convert your 1986 and later blocks with one-piece rear main seals to accept an older style 2-piece seal crankshaft. These adapters are essential when installing an early-style (1985 and earlier) crankshaft into 1986 and later blocks. When using these adapters, an oil pan for a 1985 and earlier block with a right side dipstick must be used. They are made from billet aluminum and hardware is included.
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$225.00
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