Performance is all about pushing the envelope. As camshafts become more aggressive in the search for more power, these lobes make life increasingly difficult for valvesprings. This may seem like a ...

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

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 ...

While the engineering community continues to explore the benefits of electric and hybrid vehicles—i.e., the environmental and renewable energy factors—the automotive market is still dependent on ...

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 ...

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 ...

GM has filed a patent application a variable displacement valvetrain system with rocker shaft porting and insert sleeves for ...

As with every first year of production in the car world, the 2020 Corvette isn’t perfect. Quality control is questionable at best, the mid-engine sports car had to be recalled over the “flying frunk” ...