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 ...

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 ...

Cut valvetrain weight and scream past redline. PBM's titanium valves for Chevy and Ford heads stabilize high-revving race ...

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 ...