The Original Series roller rocker arm is the flagship product of Harland Sharp. It is based on Harland Sharp’s original aluminum rocker design for competition engines. It incorporates the race-proven enhancements that have been developed during 50 years of focus on perfecting the roller rocker arm design. The Original Series features improved strength, performance and lighter weight over conventional rocker arm designs. Harland Sharp uses the latest manufacturing technology and the finest “Made in USA” materials. When you’re adding performance to your street machine or building a serious racer, the Original Series is the rocker arm recommended for you.

Harland Sharp’s new Heavy Duty Series roller rocker arms utilize similar design concepts, materials and attention to machining quality as the Original Series. These rockers are specifically designed for the heavy spring pressure and the high lift geometry of highly modified engines. The Heavy Duty Series rockers are engineered with wider bodies resulting in increased strength and longevity. When your engine requires extra durability, rely on the Harland Sharp Heavy Duty Series.

The premier Diamond Series is the latest addition to the Harland Sharp roller rocker arm family of products. Harland Sharp recognizes that every gram of weight eliminated from the reciprocating mass helps to increase net horsepower. Over 100 grams of weight have been removed from the Original series rockers while maintaining Harland Sharp’s high standards of production quality. Now you can increase the engine Horsepower/RPM quicker and compete with a reliable, lightweight valve train. The Diamond Series is the solution for the engine builder or serious racer requiring every possible weight and output advantage.

Don’t trust your custom engine investment to just any rocker manufacturer. If you’re designing  your own cylinder head, have a
non-standard head, or just can’t find the right rocker for your special applications, contact Harland Sharp. Harland’s technical experts and highly trained machinists will custom engineer rockers to meet your unique specifications. Send in a cylinder head and valves and Harland Sharp will take care of the rest. As a leader and innovator in rocker arm design, you can trust Harland Sharp to design tailored solutions for your non-standard or precision cylinder head requirements.