5/16" Polylock Rocker Arm Nut Set aircraft-style cap and -10 AN

aircraft-style cap and -10 AN pickup

finned design that adds a unique look to your engine

and outstanding performance for muscle car

then it is the installer's responsibility to verify fitment

and full power output at high rpm

5/16" Polylock Rocker Arm Nut Set aircraft-style cap and -10 ANSpeedmaster 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