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 ...

During one of our never-ending technical discussions, Jim Grubbs at Jim Grubbs Motorsports (JGM) suggested that we take a look at the flow difference between 30- and 45-degree valve seats. While ...

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 ...

Federal-Mogul’s “lean tool steel” contains a higher proportion of chromium than standard tool steels, cost-effectively adding carbides that create a multiple-phase composite microstructure. Valve seat ...

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 ...