SCS Professional Series Quick Change Gear Set #8K HYPLXLG11PA David Vizard's Chevy Big-Blocks: How

David Vizard's Chevy Big-Blocks: How to Build Max Performance on a Budget

Valve stem diameter: 3/8"

Performer 351-W Intake Manifold is designed for street 351 c

Ideal for Use w/ Holley Mid-Mount Accessory Drive System

1/2-20 in Inverted Flare Female to 9/16-24 in Inverted Flare Male

SCS Professional Series Quick Change Gear Set #8K HYPLXLG11PA David Vizard's Chevy Big-Blocks: HowSCS Professional Series Quick Change Gears are made from aircraft steel for maximum strength. Each gear has a shaved finish to minimize backlash and run out, and is broached for proper 10 spline shaft fit. The SCS Extra 5 step heat treating process yields maximum gear life for high stress applications such as big block Oswego Super Modifieds and World of Outlaws Sprint Cars. Gears have a black oxide finish, and the faces have been lightened to reduce