GM Turbo 400 TH400 Billet Steel Intermediate Clutch Sprag-Outer Race The Speedmaster GM LS1/LS2/LS6 Modular

The Speedmaster GM LS1/LS2/LS6 Modular Hi-Ram Intake Manifold is introduced as a cost effective alternative to fabricated sheet-metal for high-performance applications where induction system height is not limited

You need guideplates to keep your pushrods from deflecting under high-rpm conditions

which are each sold separately

These Speedmaster filters are washable and reusable

our Top-End engine kits will save you the time and hassle of mixing and matching components yourself

GM Turbo 400 TH400 Billet Steel Intermediate Clutch Sprag-Outer Race The Speedmaster GM LS1/LS2/LS6 ModularSpeedmaster heavy duty intermediate clutch outer race delivers more torque capacity of any OE race. High torque loads cause the race to fracture at two stress points: the radial lube holes that contact the rollers and the sharp inside corners at the base of the outer splines. Design improvements to the splines, plus upgraded material and a custom manufacturing process, further improve durability to make this heavy duty race the best option available