Since a Pontiac V-8 is a pushrod engine (instead of being an overhead cam design), it afforded us the opportunity to explore a different rocker-arm ratio and determine its impact on power. As built, ...

For racers, the most pressing questions we ponder late at night aren't about the meaning of life, the true meaning of beauty, or other such silliness. Yes, those things have their place, but we all ...

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 ...

If the LS1/LS2/LS6 engine family has a shortcoming, it has to be the rocker arm mounting, which doesn't allow for adjustment. Non-adjustable rockers have become standard in virtually all late-model ...

When most of us think about performance parts, roller rockers are usually not the first parts to come to mind. However, a good set of roller rocker arms can not only reduce friction, but also they are ...