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This particular unit retains a stock-style pulley to allow this unit to be used in stock applications
They're made from a tough
to maintain accurate valvetrain adjustment
The air flowing under the plenum provides a cooler charge for the incoming air with less heat transfer from the engine
It has bendable locking tabs and comes with special high-strength bolts
Chevy LS1 LS6 1.570" STD 8mm Stainless Steel Exhaust Valves This particular unit retains aWhen it's time for valves, don't cut corners. Get genuine Speedmaster stainless steel valves. They're made from a tough, stainless steel alloy and are carefully designed to increase gas flow for more power. What's more, they have hardened stem tips for durability and are swirl polished.
