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5" 10 Bolt axle
it provides efficient high water flow and reliable performance
but very vital component found in this mass orchestra of mechanics is the idle air control valve
Speedmaster small block 427 c
Featuring a low profile design and a high flow runner design these manifolds will improve performance from 1500-6500 RPM range
7/16" Rocker Arm Screw In Stud Kit (2.000" Above Hex) 5" 10 Bolt axleSpeedmaster 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.
