7/16" Rocker Arm Screw In Stud Kit (2.000" Above Hex) Protect your eyes with style

Protect your eyes with style

Speedmaster alternator pulleys are manufactured from quality materials to ensure strength and durability

that's 50 percent less backlash than other competitive cables on the market

They're designed with performance in mind

and most include bolt-in baffles that can be replaced

7/16" Rocker Arm Screw In Stud Kit (2.000" Above Hex) Protect your eyes with styleSpeedmaster arm stud kits are made of 4140 Chromoly steel. They're roll threaded, heat treated to a maximum strength of 190,000+ PSI. and have a black oxide corrosion resistant finish. They feature larger radius stud fillets for extra strength.