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These Speedmaster head bolt bushing kits allow you to use stock or aftermarket head bolts with Speedmaster or other aftermarket cylinder heads
The 6-pinion front planetary is constructed from investment cast steel
and their special serrated nuts guard against pan loosening during operation
use Speedmaster cast iron cylinder heads
Oldsmobile Olds 260-455 V8 Exhaust Header High Performance Fiber Gaskets These Speedmaster head bolt bushingComplete engine sealing with Speedmaster exhaust gaskets. Properly sealing an engine is paramount to making maximum horsepower. Speedmaster exhaust manifold gaskets are fabricated from large fiber gasket material bonded by a high heat resistant compound. They are precision die cut for each application, and provide excellent sealing and durability.
