GM has filed a patent application a variable displacement valvetrain system with rocker shaft porting and insert sleeves for ...
AutoGuide on MSN
GM working to rethink cylinder deactivation technology
General Motors has filed a new patent that offers a look at how the company may be rethinking cylinder deactivation for its ...
Pickup Truck Talk + SUV on MSN
New GM cylinder deactivation patent filing fixes reliability woes?– Coming for next-gen V8 engines
A recently filed patent details a new GM cylinder deactivation system that appears to be heading to the next-gen V8 engines ...
In racing, the valvetrain is one of the most highly stressed engine systems. High valve lift, high engine speed, and high spring pressures exponentially increase their demands on the lifters, pushrods ...
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