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

Fittings such as these, for connecting a compressed air line to the spark plug hole for valve support, are available at most auto parts stores. Occasionally it is necessary or desirable to inspect or ...

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 ...

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” ...

Worldwide, Honda enthusiasts invest hundreds, if not thousands of dollars on their powerplants to extract the utmost in power and reliability. Whether they opt to keep their Honda naturally aspirated, ...

We're always on the lookout for new stuff, so when information on Comp Cams dual conical valve springs came across our desk, we were eager to take a look. Comp introduced these dual conical springs in ...

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 ...