Engine Masters episode 16, presented by Amsoil, will roll you flat with knowledge on roller vs. flat-tappet cams and lifters. At first glance, one might think that the reduced friction of the roller ...
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 ...
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