Chevy BBC 454 Chrome "454 Stamped" Steel Valve Covers - Tall w/ Baffled Hole The Speedmaster throttle body begins

The Speedmaster throttle body begins as a billet of 6061- T6 aluminum for superior quality and is introduced to a state-of-the-art CNC machine

Aluminum also promotes faster heat dissipation for further cooling of your transmission

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

They utilize an open element design

Chevy BBC 454 Chrome "454 Stamped" Steel Valve Covers - Tall w/ Baffled Hole The Speedmaster throttle body beginsDress up your engine compartment without breaking the bank. These Speedmaster valve covers are an affordable and easy way to brighten up your engine.