Harland Sharp:

DonÍt trust your custom engine investment to just any rocker manufacturer. Harland Sharp has been manufacturing high performance parts since the 1950Ís and is committed to 100% Made in the USA. All materials are from USA resources. Every machining step is performed in the USA. Every component is assembled in the USA. Quality is built into every rocker arm they make. Beginning with the selection of materials, nine different 2024-T3511 high-quality aluminum extrusions are precision machined to ensure a perfect fit for every application.

Each completed piece is inspected and packed to ensure quality at every step of the process.

Now you know why Harland Sharp Rocker Arms carry a lifetime guarantee against manufacturing defects!

The Original Series roller rocker arm is the flagship product of Harland Sharp. It is based on Harland SharpÍs original aluminum rocker design for competition engines. It incorporates the race-proven enhancements that have been developed during 48+ 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 ñMade in USAî materials. When youÍre adding performance to your street machine or building a serious racer, the Original Series is the rocker arm recommended for you.

Special Notes: Adjustable

* Harland Sharp original series, "Adjustable" pedestal mount, GM LS1/LS6 roller rockers are not designed to be a replacement for the factory rocker system.
* These adjustable rockers are designed to mount to the factory location. They do require shorter pushrods and additional clearance to the cylinder head. We recommend them only to be used for serious racing applications.