Chevy GM LS3 Fabricated EFI Twin Throttle Body Intake Manifold Black strength and horsepower capabilities are

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

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

you get reduced wear on the main bearings and timing gear

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

Chevy GM LS3 Fabricated EFI Twin Throttle Body Intake Manifold Black strength and horsepower capabilities areFuel Rail Kit & Throttle Bodies sold separately.