The rocker arm employs the use of a fulcrum or pivot to increase the cam lift by a given ratio. That increase in lift is the result of moving the pushrod pivot point closer to the fulcrum. That ...

The camshaft is simply the "brain" of your engine. It decides the personality of your engine by establishing certain traits—like the power band, idle quality, and cylinder pressure—regardless of ...

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 ...

The debate over the optimum rocker arm ratio to use has dragged on probably since the invention of the pushrod V-8. Even though Chevrolet made the decision easy for us when it engineered the original ...

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.

Ok I'll try to keep the story short.<BR><BR> 1988 Jeep Cherokee, 4.0 liter inline six.<BR><BR> I changed my oil last Sunday (Oct 23rd) at my dads and all was well. Then I drove about 35kms home after ...