As Summit’s Brian Nutter explained, “Summit has introduced 250 roller cams (hydraulic and solid) since 2018. We started with the Pro LS series with roughly 50 offerings, followed by Pro SBC, Pro BBC, ...

While enthusiasts can comprehend the fact that the camshaft is responsible for opening and closing the intake and exhaust valves on an LS motor, relating these events to crank position, engine ...

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 ...

It's been all the talk on internet forums, club meeting hangouts, and in enthusiast garages across the nation—the loss of zinc and other protective "barrier" chemicals in modern oil damaging ...