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Speedmaster revolutionary Super Glide window design ensures an easy installation and smooth operation
Speedmaster one piece silicone rear main seal
Speedmaster planetary gear sets have an extremely stout output shaft
These rear-ends have a reputation for being tough to handle the abuse of Circle Track racing
Chevy BBC 454 Rear Seal Adpater Gen V &VI Block 1PC to 2PC Rear Main Seal Speedmaster revolutionary Super Glide windowThese Speedmaster 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.
US$ 910.00
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