Post Tagged with: "valvetrain tech"

Tech Articles

Ask Away! with Jeff Smith: Troubleshooting Valve Train on Small Block Chevy 355

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 […]


Mailbag: What is Valve Spring Coil Bind?

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 […]


Mailbag: What is Valve Float and How Do You Fix It?

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 […]

flat tappet lifters

Making the Most of Modern Flat Tappet Camshafts and Lifters

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 […]

Cam and Lifter Failure
Videos & Galleries

Video: Top 10 Reasons for Camshaft and Lifter Failure

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 […]

jesel roller lifters (Image/Dragzine)
Parts / Product Profiles

A Closer Look at Jesel’s Solid Tie Bar Roller Lifters

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 […]

Q&A / Tech

Mailbag: Checking Hydraulic Lifter Preload with Non-Adjustable Rockers

Q: We have a 1974 Ford F-100 pickup we use as a tow vehicle. It has a 360-cubic-inch two-barrel engine running Crane stock replacement cam and “anti-pump-up” hydraulic lifters. The heads […]

Tech / Tech Articles

Valve Decoder: What are Your Engine Valves Trying to Tell You?

In a previous post, we showed you how to read your spark plugs. Now we’re going explain how to read your engine valves and valve-related components and translate what they’re […]

Q&A / Tech

Mailbag: Understanding Cam and Valvetrain Basics

You’ve got questions. We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re answering some basic valvetrain-related questions. J.H.  Kegley, WV Q: Here are a few questions […]

Tech / Tech Articles

Rock On: 3 Ways to Increase Power with a Rocker Arm Change

Rocker arms are among the most stressed components in your engine—and the most important, too. They’re essentially tasked with transferring movement from the camshaft lobes to the valves, making them […]