Tech

Q&A

Ask Away! with Jeff Smith: Are There Benefits of Staggered Rocker Arms?

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 […]

Tech Articles

Aww Nuts! (And Bolts. And Studs.) – Understanding Engine Fastener Types & Materials

At first glance, it doesn’t seem like there are a lot of fasteners in an engine. But think again! Looking at it from the carb studs down to the oil […]

Tech Articles

2009+ Mopar Gen. III 5.7L Hemi Eagle Engine Guide: Bore & Stroke, Cylinder Heads, Cam Specs & More

When Chrysler announced it was bringing back the legendary Hemi in the early 2000s, it was a big deal. This new series of Hemi engines is often referred to as […]

Product Installs / Videos & Galleries

Video: How to Install AMP Research PowerStep Step Bars on Your Truck or SUV

It’s no secret that trucks and SUVs are getting taller, which is why we’re seeing more and more equipped with step bars. But adding a step bar beneath the cab […]

Tech Articles

Fueling Around: How to Pick the Right Mechanical Fuel Pump Pushrod for a High Performance Engine

The mechanical fuel pump pushrod is a pretty simple device. It joins a lobe on the camshaft (or an eccentric) to a lever on the fuel pump. As the engine […]

Tech Articles

How to Read a Cam Card to Understand Camshaft Specs

The world of high performance engines can be a very confusing place, where terms and specifications seem to be full of obscure references that appear to make no sense. But […]

Q&A / Tech

Ask Away with Jeff Smith: How to Choose the Right Pushrod Length for Taller Lifters on a Big Block Chevy 454

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 […]

Tech / Tech Articles

Single or Twin Turbos—Which One is Better for Boosting Your LS Engine?

Is it better to run one big turbo or two smaller turbos? This is a very common question among enthusiasts, and while it usually comes down to packaging, a single […]

Q&A / Tech

Ask Away with Jeff Smith: Setting Up a Throttle Valve (TV) Cable on a GM 700-R4 Automatic Transmission

I’m considering a 700-R4 overdrive for my C-10 pickup project since I have a trans that I got for a really good price. I know that a lot of people […]

Q&A / Tech

Ask Away with Jeff Smith: Why Do Some Cars Only Spin the Right Rear Tire Under Hard Acceleration?

I’m new to the old car hobby (cars of any kind really) and I’m trying to learn all I can. One thing I’ve noticed is that some rear wheel drive […]