This gear drive starts off with a billet alum. cover that is machined to exact tolerances giving the motor it's best chance for accurate cam timing, strength and gear mesh.
Gear set includes a dual keyway crank gear, an idler gear that has a high speed precision ball bearing, and a cam gear that uses seven hole vernier to dial in cam timing. The gear drive includes a shim kit with thrust bearings and washers to set cam thrust. Fuel pump drive hub uses a .375" hex shaft to drive the fuel pump. All gears are made from heat treated steel.
This gear drive is set up to be used on a .250" raised cam KB Olds, or New Century engine blocks.
RBS can also supply pump extensions per the customers needs when ordering the gear drive.