7/16" Rocker Arm Screw In Stud Kit (1.800" Above Hex) Speedmaster machined aluminum water pump

Speedmaster machined aluminum water pump pulley nose cones are offered straight off of the mill without polishing for a gorgeous matte finish

These Speedmaster expansion tanks are perfect for cars with low-mount radiators to provide a convenient filling location and to bleed off unwanted air

*Will not work on engines w/reverse flow heads as utilized on 1992-96 LT-1 Corvette

Additional fittings may be required depending on your application

7/16" Rocker Arm Screw In Stud Kit (1.800" Above Hex) Speedmaster machined aluminum water pumpSpeedmaster 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.