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 ...

Original engines in cars built before the early 1970s generally don't have hardened exhaust seats that are resistant to unleaded gas. Nevertheless, tests conducted in the mid-1970s by the U.S. Army, ...

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 ...

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 ...

We're back with our follow-up to our KA24DE engine buildup. In the first part of our series we gave an overview of the project, as well as certain key features on the engine block. In this installment ...

Cold Spray process in the production of Nissan’s 1.5L e-Power engine Nissan Motor Company has revealed that it has adopted cold spray technology in the production of valve seats, claiming to be the ...