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 ...

An engine's valvesprings play a critical role in its performance, yet those incorrectly chosen for a given application can cause hobbyists to unknowingly point blame in another direction if an engine ...

Toyota had just managed to settle the recall waters a little bit last month, when its premium division Lexus debuted a recall for 17,000 HS 250h hybrid vehicles that were suspected of having a fuel ...

Your mitral valve is one of the four major valves in your heart. It helps blood flow through your heart and out to the rest of your body. When this valve isn’t working correctly, it puts stress on ...

PLYMOUTH MEETING, Pa. (WPVI) -- The TAVR procedure has revolutionized a challenging task in heart care: fixing stiff valves. And it has made the process much easier for patients, getting them back to ...

Imagine this scenario. You've scrimped and saved, and finally have enough dough to get the Corvette you've had your eyes on. Just for argument's sake, let's say that dream car is a cream-puff '92 ...

Ischemic mitral regurgitation is associated with a substantial risk of death. Practice guidelines recommend surgery for patients with a severe form of this condition but acknowledge that the ...

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 ...

For all the innovation, engineering, and miniaturization that has helped to refine surgical and transcatheter aortic valve replacement over the last few decades, they still fall short of ideal. That ...