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

Manufactured from cast aluminum

351c Cleveland

The Speedmaster shift selector shaft is built with sturdy

Silicon aluminum is the choice for many of today's engine manufacturers because of its high fatigue strength and superior temperature threshold

They also help to insulate the carburetor from engine heat and provide clearance for linkages

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.