Chevy GM LS3 Fabricated EFI Twin Throttle Body Intake Manifold Black Speedmaster chromoly steel retainers are

Speedmaster chromoly steel retainers are made from 4140 chromoly and then heat-treated for long life

Speedmaster high-volume water pumps have a ribbed aluminum housing and a heavy duty ball/roller bearing assembly

These Speedmaster connecting rod bearings are just what you need to freshen up your engine

Speedmaster cylinder head fasteners are made from aircraft quality 8740 high tensile strength chromoly steel and cold-forged to ensure molecular integrity

strength and horsepower capabilities are significantly outstanding compared to cast forged crankshafts

Chevy GM LS3 Fabricated EFI Twin Throttle Body Intake Manifold Black Speedmaster chromoly steel retainers areFuel Rail Kit & Throttle Bodies sold separately.