7/16" Polylock Rocker Arm Nut Set (Suits: Stainless Rockers) street-rod applications and more

street-rod applications and more

capable of withstanding valve spring load

These durable but lightweight aluminum pumps push up to 35 gallons of water per minute of coolant circulation

2 SFI Approved and will withstand the extreme power and rpm of your performance application

Available in plain or finned styles

7/16" Polylock Rocker Arm Nut Set (Suits: Stainless Rockers) street-rod applications and moreSpeedmaster 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