3/8" Polylock Rocker Arm Nut Set (Suits: Stainless Rockers) The Speedmaster MidRise Air design

The Speedmaster MidRise Air design features the identical plenum and runner design as the normal MidRise

look no further than Speedmaster

Compatible with Gas

exhaust gaskets

Due to the large-diameter 13 in

3/8" Polylock Rocker Arm Nut Set (Suits: Stainless Rockers) The Speedmaster MidRise Air designSpeedmaster 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