We may receive a commission on purchases made from links. There are many V6 and V8 engines that use camshafts located within the engine block and pushrods to activate overhead valves. In those engines ...

Mechanical lifters were once commonplace in internal combustions engines, but they've been mostly replaced by hydraulic lifters, which offer a lot of benefits.

Back in 2021, a class action lawsuit was filed against General Motors over valve lifter-related issues in certain Cadillac, Chevy and GMC models outfitted with certain V8 gasoline engines. That ...

From the archives: The beauty of hydraulic lifters is that they self-compensate for valvetrain clearances, doing away with the need for valvetrain adjustment. To celebrate HOT ROD's 75th anniversary, ...

The Cummins 6.7L turbo diesel engine entered its fifth generation in 2019. In addition to improved output of up to 400 horsepower and 1,000 pound-feet of torque, the new engine's valve train featured ...

CarComplaints reports that a federal judge just handed GM a significant procedural win in the long-running engine lifter class action, denying the plaintiffs’ motion to sever the case into two ...

In a world without limits, camshaft designers have known for decades what profiles they'd like to grind. But real-world technological limitations-in terms of design feasibility, materials science, and ...