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Speedmaster aluminum crankshaft pulleys are manufactured from 356 aluminum that is heat-treated to T-6 specs
ensuring a perfect fit and maximum efficiency
So can features such as full ball-bearing construction
Featuring a low profile design and a high flow runner design these manifolds will improve performance from 1500-6500 RPM range
a new lower housing casting for enhanced fuel flow
Oldsmobile 350 400 425 455 Fabricated Valve Covers - Polished Speedmaster aluminum crankshaft pulleys areCover your valvetrain with a set of Speedmaster fabricated aluminum valve covers. They feature lightweight construction with a thick rail for gasket support. These valve covers are TIG welded and are manufactured to help eliminate distortion and ensure a perfect fit to help protect your valve covers and rocker arms. Speedmaster aluminum valve covers are the perfect fit for your engine.
