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 ...

Performance tricks are usually just sleight-of-hand changes that dolittle to improve performance. After all, if it was that easy, everyonewould be doing it, right? But the simple fact is, valvespring ...

Many gearheads buy their cylinder heads fully assembled and don’t have to sweat making sure all of the various parts are set up correctly. But for those that build their own, or that just need to swap ...