The horsepower game is all about escalation. Everyone knows that the LS engines are the easiest path to big horsepower. But that also means bigger cams and higher engine speeds, and all that puts a ...

Overhead cams are a more efficient method of actuating the valves than with a pushrod, but someone in Detroit never got the memo. And thank goodness they didn't. With production pushrod mills turning ...

Would you believe us if we told you that you could put 15-17 more horsepower to the wheels with rocker arms? We were a little skeptical until we soaked up the complete details on how possible this ...

Any gearhead worth his or her salt knows that whether it's a SOHC, DOHC, or OHV engine, the camshaft is considered the brain of a four-cycle internal combustion power plant. The camshaft's profile ...