To call the Crane Cams shaft-mounted "Quick-Lift" design rocker arms new would not be entirely accurate. To say they have burst onto the scene and have created a lot of excitement among ...

It's no secret that adding duration and valve lift helps make power. But besides changing camshafts, there is another way to modify valve events-change the rocker-arm ratio. Ford V-8 rocker ratios-at ...

Changing the rocker arms in your C5 or C6 Corvette may not deliver the dramatic results that a cam swap can, but it's a lot less work. And the power increases you'll experience make the change a good ...

Can roller rocker arms actually help add horsepower? The mechanically savvy will likely consider that question and say: “If you have more lift, and open the valves more, then you’ll make more power.

Q I own a '99 Chevy Lumina with a 3.1-liter V6. This weekend I got a flashing check-engine light with a severe misfire. I took the vehicle to a shop, which told me I had two rocker arms blown right ...

Some 2013 Acura RDX SUVs may intermittently illuminate the check engine light and store trouble code P3400 and/or P3497 in the PCM. One likely cause, reports Acura, is a sticking rocker arm oil ...