5/16" Base To 7/16" Rocker Stud Set +0.500 Longer Late Ford Head Applications to provide maximum performance

to provide maximum performance

These MidAir Series Manifolds includes a 4150 Series 1200 CFM Billet Throttle Body

These Speedmaster aluminum crankshaft pulleys help to increase horsepower by reducing accessory drag

The precise design of these Speedmaster carburetor spacers provides a smooth transition of fuel from the carburetor to the intake manifold

5/16" Base To 7/16" Rocker Stud Set +0.500 Longer Late Ford Head Applications to provide maximum performanceSpeedmaster 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.