Those wound-up pieces of high-tensile steel under your rocker arms work so hard closing your valves over millions of cycles that they could probably use a replacement right about now. We're talking ...

For mild street engines, stock valve springs are more than adequate. But if you've screwed in a big bumpstick for strip-banging or banzai runnin', then pay attention. Our plan was simple: Install a ...

Beginning April 5, 2024, a selected group of Kia Telluride owners across the United States will receive a letter in their mailbox informing them that the valve springs in their vehicle’s engine may be ...

A small gap with big importance in the performance and health of an engine - here's everything you need to know.

A number of Scion FR-S (know rebranded as the Toyota 86) and Subaru BRZ owners are claiming that their vehicles have encountered serious engine issues after being repaired as part of a recent recall.