Time was when a valve job was done with some valve-grinding compound and a vacuum cup on a stick. But no more. Today's high performance engines require the same machining precision in the valves that ...

I bought a 1969 Chevrolet Chevelle SS 396 recently and want to know if unleaded gas will harm my engine. Also, will using regular unleaded instead of high-octane unleaded hurt? I’d rather use the less ...

The internal combustion engine lives by some pretty basic principles, some of which include letting air in, compressing said air, and letting air out. An engine's valves come into play during each of ...

Nissan Motor Company has revealed that it has adopted cold spray technology in the production of valve seats, claiming to be the first company to use the process in automotive engines. The Japanese ...

The emissions system of your car does a lot to help make its exhaust more bearable to deal with. But it wouldn't be nearly as ...

Last month, we took you through the tear down and inspection of Gary Schweitzer's '65 200ci six-cylinder engine at JGM Performance Engineering. We learned during the process that 35,000 original miles ...