The hottest cylinder head on the small-block Chevy hit parade right now is the Vortec iron head. It's extremely affordable and flows a bunch of air for a stock production iron head with a 170cc port ...

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 ...

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, ...

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 ...

If you’re one of the many, many customers waiting on a replacement valve body for the 10-speed Allison transmission in your GM heavy duty truck, there may finally be some light at the end of the ...