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rear-end housings
The internal components are made from EN36 Material as used in racing
One very small
These Speedmaster aluminum water pump pulleys are made from a 356 aluminum alloy that is heat-treated to T-6 specs
TheseSpeedmaster Ford front covers are direct replacements for your stock timing chain cover
7/16" Rocker Arm Screw In Stud Kit (1.800" Above Hex) rear-end housingsSpeedmaster 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.
