The camshaft is one of the most important factors in determining an engine's torque and powerbands, able to make or break an overall engine combination. On the street, hot rodders must tread a fine ...

Bigger is better, baby, and the hot rodder's battle cry is nowhere more in vogue than with the part-time engine-builder hooked on big-lift cams. But there's much more to the science of lobe crafting ...

In the Oct. '05 issue of Sport Truck, we started the task of powering up a GM Vortec big-block powerplant in a '96 Chevy Crew Cab dualie. The goal was to increase the amount of torque the ...

Picking the right valvetrain for your engine can be a daunting task. Solid flat tappet, hydraulic flat tappet, solid roller, hydraulic roller; these are the choices, made even more difficult due to ...