5/16" Polylock Rocker Arm Nut Set 6" axle or GM 10-Bolt

6" axle or GM 10-Bolt

These Speedmaster aluminum water pump pulleys are made from a 356 aluminum-alloy that is heat-treated to T-6 specs

These pans use the stock pickup

These billet aluminum oil pumps are designed to maintain adequate oil volume in the harshest racing environments

Four corner water ports

5/16" Polylock Rocker Arm Nut Set 6" axle or GM 10-BoltSpeedmaster rocker arm adjusting nuts are high quality polylocks designed for full roller rocker arms. Made from heat treated, premium grade 4140 chromoly steel, these adjusters provide 190,000 psi tensile strength for the utmost in reliability. Precision CNC machined threads to ensure optimum seat pressure, flush machined set screws for proper contact on the studs, and, best of all, they don't require any special tools for installation. They're