A class action lawsuit filed against GM over alleged faulty lifters in certain V8 engines has still not received class action ...

Engines are incredibly complex. They are made out of thousands of different parts, exposed to high temperatures, and have lots of moving parts. This leaves many potential pain points an engine can ...

The engines of yesteryear were pretty simple, with tappets clackity-clacking away on cam lobes, opening valves, and making a ruckus while doing it. Mechanical lifters were adequate for valve operation ...

Jeff Blitz purchased his '66 Chevy II Nova four years ago, complete with a carbureted 10.5:1 355ci small-block Chevy, a TH350 automatic with a 3,000-rpm stall-speed converter, a 3.55:1 12-bolt rearend ...

A pushrod is basically a metal tube designed to transfer the reciprocating motion of a valve lifter, riding on the camshaft, to the valve. I found the pushrod fascinating 20 years ago, back when I was ...

A recently filed patent details a new GM cylinder deactivation system that appears to be heading to the next-gen V8 engines ...

I have a 2015 GMC Silverado with the 6.2-litre engine. It has recently developed a tapping sound (like a bad lifter). Having done some research, it looks as if this model with this engine has a bad ...

One of the most overlooked areas within the valvetrain for a performance engine is pushrod length. Veteran enthusiasts may scoff at this because, back in the day, you just dropped in a set of stock ...