5/16" Base to 7/16" Rocker Stud Set Speedmaster keeps you in the

Speedmaster keeps you in the race with competitive pricing and quality parts

each Manifold is 100% pressure tested for leaks to eliminate installation problems

They are built from strong

Speedmaster piston oil ring spacers are manufactured from spring steel and install against the bottom sill of the oil ring groove

this turnkey engine delivers modern usability with vintage legend

5/16" Base to 7/16" Rocker Stud Set Speedmaster keeps you in theSpeedmaster 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.