valvetrain tech

Camshafts are often erroneously blamed for valvetrain problems. Our friends at COMP Cams set the record straight in today’s video. It highlights several critical issues that are related to camshaft […]

There are many roller lifters available today. They range in quality from so-so to over the top.  On the over-the-top end of the scale is the lineup from Jesel. Jesel […]

Q: We have a Ford F-100 pickup we use as a tow vehicle. It has a 360-cubic-inch two-barrel engine running Crane stock replacement cam and “anti-pump-up” hydraulic lifters. The heads are […]

In a previous post, we showed you how to read your spark plugs. Now we’re going explain how to read your engine valves and valve-related components and translate what they’re […]

You’ve got questions. We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re answering some basic valvetrain-related questions. A: Here are your answers in order:

Rocker arms are among the most stressed components in your engine—and the most important, too. They’re essentially tasked with transferring movement from the camshaft lobes to the valves, making them […]

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we add new valvetrain components to old “camel hump” cylinder heads. R.B. Las Vegas, […]