Featured Articles

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Video: FAST LSX Interchangeable Runner Dyno Testing

FAST is changing the game for LSX intake manifolds with interchangeable runners. Now you can tune your powerband with 3 lengths of runner, or mix and match! Read More


Pump Gas Pontiac Pushes 2 Hp Per Inch!

This DCI Automotive Pontiac 455 makes nearly 2 horsepower per cubic inch, naturally aspirated on pump gas. With some more tweaking we hope for even more! Read More


Valve Spring Tech: Overview Of Valve Spring Design, Dynamics

Valve springs operate in an extremely violent environment. We take a look at the designs available for valvetrain control, advancements in material, and the importance of natural frequency. All the latest tech here! Read More

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TECH5: Cometic Offers Gasket Tips & Tricks

Preventing leaks is always a concern for engine builders. Cometic's Kevyn Kistner sheds light on MLS gaskets and other sealing issues in this TECH5 report. Read More


Life Blood: Peterson Fluid Control In A Boosted LSX Monster

The Goodguys AutoCross calendar draws entrants from across the country as it makes stops in ten states, and multiple re-visits. The caliber of competition and exhibition of machines was unparalleled. Read More


Controlling A Plenum Back-fire With Wilson Manifolds

Wilson Manifolds knows the damage an exploding sheetmetal intake can do to both the vehicle and bystanders. The addition of an SFI approved intake burst plate is the first line of defense against this disaster. Read More


Motovicity And Duttweiler Build A Custom Spec LS3 427 Stroker

This LS3 stroker motor put together by one of the best engine builders around provides plenty of ideas for any LS build. And with more than 560 horsepower, it will be a strong runner on the street, strip, or track. Read More

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King Engine Bearings’ High-Tech Approach To Bearing Design

The Israel based engineering team at King Engine Bearings has a unique and high-tech approach to how they begin the development of their engine bearings. Read More

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Improving Cylinder Head Flow With SuperFlow

Getting the best flow characteristics out of cylinder heads takes know-how. With the P-D valve from RTS Tooling SuperFlow helps us take out the guesswork. Read More


Performance Exhaust System Design And Theory

Exhaust system design is more complicated than running a few tubes. Look into the fluid dynamics involved in generating scavenging and avoiding restriction. Read More


Superchargers In The Desert – LT4 Trophy Truck At Danzio Performance

Danzio Performance is a key player in the desert racing engine world. Building engines for everything from Trophy Trucks to limited buggies they always have something interesting in the shop. Read More

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Five Crate Engine Choices To Save You Time And Money

Is your ride in need of an engine? If you're not interested in looking for a rebuildable core, finding someone to rebuild it, and then waiting for it, you have an option. Actually, five of them. Find out more. Read More


Taking The Guesswork Out With Fuel Injector Clinic

We spoke with the experts at Fuel Injector Clinic about the most common questions for replacing and upgrading fuel injectors. FIC's Jens Van Holten takes the speculation out of fuel system modifications. Read More


Tech: Choosing The Proper Bearings For Your Engine

If you are planning to rebuild the engine in your ride, are you sure you know which engine bearings you need? We get some insight from King Bearings to help you make an informed decision. Now, get building! Read More


Thompson Performance: Simple Bolt-On Proves Better Throttle Response

If you want the most out of your carburetor and the most out of your dollar, then the Thompson Performance Powerblast Plate is for you. Check out how this small, simple, part offers huge gains in throttle response. Read More


Hemi For The Water: Amphibious Motorsports

Building a Hemi for a Lucas Oil Drag Boat series Pro-Mod is a serious task. We had a look into the evolution of one teams powerplant program. Read More


Choosing The Right Fabricated LS Oil Pan: What You Need To Know

If you're building an engine that differs significantly from its stock configuration, the stock oiling system might not be right for the job. Here are some things to consider when selecting oil system components. Read More


Dyno Testing Four Popular LS3 Bolt-On Intake Manifolds

We're putting our engine build from the Coyote vs LS3 Budget Shootout on the dyno and testing a trio of aftermarket intakes to see how they stack up against the stock manifold on this street-friendly LS3. Read More


Street Engine Build: 416ci Mopar Pulls 475 Horsepower

Follow along as a small-block Mopar is stroked to 416ci and given a cam that offers plenty of power and vacuum for the street. Read More