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the least runout
Speedmaster machined aluminum water pump pulley nose cones are constructed from top-quality 356 aluminum alloy that's heat-treated to T6 specifications
The Speedmaster shift selector shaft uses an O-ring to prevent leakage from GM TH400 cases
This manifold will typically produce more power than any similar competitive manifold due to larger ports and runners
and have TIG-welded seams
Chevy SBC 350 Billet Aluminum Long Water Pump Lwp 3 Groove Crank Pulley the least runoutSpeedmaster aluminum crankshaft pulleys are manufactured from 356 aluminum that is heat treated to T 6 specs. These Speedmaster aluminum crankshaft pulleys help to increase horsepower by reducing accessory drag.
