Custom Speed Parts

Manufacturer of Harland Sharp roller rocker arms Harland Sharp is a small family owned and operated business located in Strongsville, Ohio about 20 minutes south of Cleveland. Operating as Custom Speed Parts Mfg,. Inc. and founded in 1960, our tradit...

Manufacturer of Harland Sharp roller rocker arms Harland Sharp is a small family owned and operated business located in Strongsville, Ohio about 20 minutes south of Cleveland. Operating as Custom Speed Parts Mfg,. Inc. and founded in 1960, our tradition of Made In America, and individually hand inspected parts, still holds true today. We strive for perfection in each set of rocker arms that we manufacture, using the highest grade 2024 aluminium that is available in the USA. Harland Sharp is truly the original manufacturer of the high performance aftermarket industy's roller tip rocker arm.