The new darling of the camshaft world is the hydraulic-roller cam. GM made it fashionable back in the late ’80s when Chevy put hydraulic-roller cams in production Corvettes and ’87 Camaro engines. At ...
The concept of placing a small wheel at the end of a tappet to reduce friction has existed for decades, and in fact, roller camshaft setups have been available for the American V-8 engines we tinker ...
When Chet Herbert introduced roller tappet camshafts to racing in 1950, he established an upper echelon of performance hardware that continues to carry that hard-core mystique. The roller tappet ...