3/8" Polylock Rocker Arm Nut Set (Suits: Stud Girdle) Whether you are narrowing a

Whether you are narrowing a rear axle housing for bigger tires or just building a new housing for your street car

These High Performance series flywheel bolts from Speedmaster are far superior to OEM hardware

Speedmaster brackets are constructed from durable steel

These Speedmaster EFI fuel pressure regulators give you total control of your fuel pressure settings

straight ball-milled

3/8" Polylock Rocker Arm Nut Set (Suits: Stud Girdle) Whether you are narrowing aSpeedmaster 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