SCS Professional Series Quick Change Gear Set #4 725015 In some cases

In some cases

Chevrolet: Bel Air 63 - 69 7 L Engine

Type III hard coat anodized body

Professional grade "Roll Over" style wire crimpers

The Street HP features an aluminum contoured main body design taken from the race winning 4150 HP(TM) and has a tumble polished shiny finish and screw in air bleeds for precision tuning capabilities

SCS Professional Series Quick Change Gear Set #4 725015 In some casesSCS 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