The valvespring is the curse of the overhead-valve, pushrod V-8. Racers and savvy enthusiasts have long been conscious of the effects of valvesprings going away. Take a cruise through the pits of any ...

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 ...

In this final installment of HOT ROD's 350-cubic-inch Chevy V-8 engine build series (originally published in October 1989), Steve Anderson breaks down the things to look for and the hard parts you ...

After admitting it sold as many as 270,000 vehicles with defective engines, Lexus has now announced it will recall those models, which include 138,000 Lexus IS, GS and LS models in the United States.

In the pre-LS era, a typical small-block-powered street car would rev willingly to around 5,000 rpm. You could assemble a cam package for it—even using heavy components—and you probably wouldn't have ...

A STUDY of the influence of vibration on valve-springs reveals two possible ways in which a valve-spring can vibrate: First, when the frequency of the forced vibration is low, the force tending to ...