7/16" Rocker Arm Screw In Stud Kit (2.000" Above Hex) Featuring a low profile design

Featuring a low profile design and a high flow runner design these manifolds will improve performance from 1500-6500 RPM range

Designed for C4 transmissions in competitive environments where RPM levels approach or exceed 8

Unleash monstrous torque and reliable street/strip power with this fully built 351 Windsor to 427Ci stroker engine by Speedmaster

Speedmaster aluminum timing covers offer a strong

7/16" Rocker Arm Screw In Stud Kit (2.000" Above Hex) Featuring a low profile designSpeedmaster 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.