5/16" Base To 7/16" Rocker Stud Set +0.500 Longer Late Ford Head Applications Manufactured from cast aluminum

Manufactured from cast aluminum

This upgraded combination elevates the standard in electronic fuel injection

Speedmaster serpentine belts are designed to keep your accessory drive operating properly

most include a drain plug for easy fluid changes

they don't require any special tools for installation

5/16" Base To 7/16" Rocker Stud Set +0.500 Longer Late Ford Head Applications Manufactured from cast aluminumSpeedmaster 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.