Build a stock-style or mild Mopar engine, and all you have to know about the valvetrain is how to tighten 10 rocker-shaft bolts. Delve into the exciting realm of high-performance, highly modified ...

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 ...

Less leakage results in reduced product loss, increased efficiency, and improved energy management. Figure 1. This control valve is subjected to EPA’s Method 21 “sniff ” test to determine the fugitive ...