Rather than risk this on our LS3, we installed an LS rocker-arm bearing upgrade kit that replaces the factory bearing and trunnions and adds the safety of snap rings to keep it all in place.

The stock LS rocker arm is a wonderful piece of engineering. It’s light, small, and very rigid with a 1.7:1 rocker ratio. It’s even blessed with a needle bearing fulcrum.

The rocker arm ratio effectively multiplies the amount of lift from the camshaft and applies it opening the valve. For instance, a typical small-block Chevy like the much-maligned 305 has a stock ...

In this article we provide Corvette enthusiasts with everything they need to know about rocker arms and Small Block Chevy valvetrain tech prior to modifying their Chevrolet Corvettes - Vette Magazine ...

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 ...

In this episode, I showcase the work done at Rectidama, an excellent engine machine shop nearby. The process begins with the complete dismantling of the head, followed by ultrasonic cleaning in ...

Carsguide reader Paul Rand asked us about rocker arm failures on the Holden Captiva and we said we would contact Holden and ask about the issue. Here is the company's response. Some early Captivas ...

In turbochargers, silicon nitride helps in reducing engine lag and emissions; in petrol engines, it is utilized for rocker arm pads to reduce wear; and in exhaust gas control valves, the material ...

The stock LS rocker arm is a wonderful piece of engineering. It's light, small, and very rigid with a 1.7:1 rocker ratio. It's even blessed with a needle bearing fulcrum.