Hydraulic roller lifters are now commonplace, even in some high performance engine builds. But while they handle the same job as their mechanical roller and flat tappet friends, hydraulic roller […]
I just discovered a rocker arm on my small block that loosened up and popped off the stud. It kinda mangled the threads on the stud, so I’m going to […]
Why do some engine builders stagger the rocker arms, 1.6 on the intake and 1.5 on the exhaust? Is there any benefit in doing that?G.L. This is a great question and […]
I’ve got a 454 big-block Chevy that I’ve installed a hydraulic roller cam which also meant I had to also use taller hydraulic roller lifters. With it all bolted back […]
I have a 355 c.i.d. small-block Chevy with a big cam, decent compression, and production iron heads. The cam is an Isky 268/272 at 0.050 with 0.640-inch lift. It has […]
Q: What is valve spring coil bind? … A: Coil bind happens when the valve spring is fully compressed. The coils of the spring contact each other. This stops the […]
Q: What is valve float? … A: Valve float is basically when the valvetrain gets out of control. There are two types of valve float: Loft and Bounce. Loft happens […]
Camshafts and lifters are available in two basic formats—roller and flat tappet. And then within those two formats, they can either be of the mechanical (solid), or hydraulic variety. Fair […]
Camshafts are often erroneously blamed for valvetrain problems. Our friends at COMP Cams set the record straight in today’s video. It highlights several critical issues that are related to camshaft […]
There are many roller lifters available today. They range in quality from so-so to over the top. On the over-the-top end of the scale is the lineup from Jesel. Jesel […]
