3/8" Polylock Rocker Arm Nut Set (Suits: Stainless Rockers) Speedmaster 7000 Series Cast Body

Speedmaster 7000 Series Cast Body Ready-to-Run distributors are the perfect upgrade for your outdated and worn out stock distributor

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

Speedmaster keeps you in the race with competitive pricing and quality parts

The successful formula of offering a complete engine drive accessory kit has now been applied to the Serpentine with Speedmaster pulley systems

Manufactured with lightweight aluminum technology

3/8" Polylock Rocker Arm Nut Set (Suits: Stainless Rockers) Speedmaster 7000 Series Cast BodySpeedmaster 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