Camshafts and lifters are available in two basic formats—roller and flat tappet. And then within those two formats, they can either be of the mechanical (solid), or hydraulic variety. Fair enough. That should come as no surprise to most people reading this. But what makes up a flat tappet lifter? They’re typically hollow steel and
“Roller lifters maintain better contact with cam lobes, allowing cam designers to create profiles with more midrange and top-end power than a flat-tappet cam with the same duration,” says two-time NHRA Pro Stock champ Jason Line. In this short tech tip video from Summit Racing and Powerblock TV, Line will give you a quick refresher
It’s a wonderfully wacky world we car people live in. The things that turn our cranks would only puzzle those outside the fraternity. After all, who but a fellow gearhead would understand why we’re excited about—nay, salivating over—a hunk of cast iron with eight big holes in it? The hunk of cast iron in question
If the rotating assembly is the heart and soul of your engine, the camshaft is the brains. It controls the movement of the entire valvetrain, telling the valve when to open and close and allowing your engine to breathe properly. Fortunately, you don’t have to be a brain surgeon to pick the right cam for
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