When precession and performance matter mostů choose RGR! call us at:  209.368.2571

Precision Designed &
Machined Racing Parts

Speed Boat Racing Propellers

RGR's exclusive forged propeller blanks are precision manufactured using our patent pending technique..




Rocker Arms

RGR's Rocker Arms and springs are milled with our computerized CNC, then polished to remove any milling burs.

  • Lighter and stronger than aluminum valve geometry
  • Dual bearing to offer less side load
  • 4340 heat treated material
  • Less inertia weight




Cylinder Heads



The RGR Difference

  • State-of-the-art facility utilizing the latest machining technology
  • Personal, one-on-one customer service for a long term relationship
  • Full service facility—all work done under one roof
  • Each build is a "custom build" without special costs
  • Superior component designs created from our extensive research & development
  • Patented one-piece forged propeller available
  • Confidential head digitizing, 5-axis CAD/CAM software
  • Engine dyno testing facility
  • Spintron testing facility