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Product & Installation Articles

Speed Secrets: What’s So Great About the FAST LSXR Intake?

Speed Secrets: What’s So Great About the FAST LSXR Intake?

When GM designed the LS1 engine, they didn’t give it an intake to do it justice. Thankfully, FAST came up with a solution. Richard Holdener explains the magic behind the FAST LSXR intake in this episode of Speed Secrets. Of all the intake manifolds GM has produced over the years, the LS1, the beginning of arguably the best GM engine ... Read More »

Speed Secrets: Are Small Block Chevy Cam Swaps Like LS Cam Swaps?

Speed Secrets: Are Small Block Chevy Cam Swaps Like LS Cam Swaps?

Can you get the same kind of gains from Small Block Chevy cam swaps as the LS guys? Find out in this episode of Speed Secrets with Richard Holdener. Chevys revolutionary LS based engines seem to be an anomaly. With the way these engines respond to even mild cams, it makes you wonder how it can be so superior to ... Read More »

Speed Secrets: Choosing the Right Cam for a 347 Ford Engine

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Having a 347 cubic inch stroker Ford means you can do more with your cam, but picking one out can be tricky, Richard Holdener is here to help. Richard Holdener at Speed Secrets once again teams up with Comp Cams to build a mean small block stroker Ford engine. What makes a stroker engine unique is the increased length in ... Read More »

The A Team: Cam, Chemicals and Boost

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The first step on the road to success with any LS, even a boosted one, is always a cam swap!    When it comes right down to it, all dyno testing is fun, some tests are just more fun than others. Case in point, any test that involves what we call the A-Team, meaning a motor from the wrecking yard, ... Read More »

Dynamic Daily: Dr. Jekyll Meets Mr. Hyde

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By Richard Holdener/Photos By Author This is how you make your mild, carbureted 4.8L Dr. Jekyll becomes Mr. Hyde.     When it comes to power plants for an enthusiast vehicle, most guys have one of two distinct types, wild race car or mild daily driver. In truth, many have both, as the cantankerous race-car motor hardly makes for a reliable, ... Read More »

Modern Muscle: Zex-Injected DI L83

Nothing wakes up a new direct-injected, LT-based motor like a little Zex!

 Like anything new, the arrival of the junkyard L83 5.3L at Westech was met with a certain amount of skepticism. Having run endless testing on the previous generation LS engine family with tremendous success, we really didn’t know what to think about the new direct-injected LT motor. The LS was such a huge jump in performance over the previous Gen-2 ... Read More »

The Trade Parade: 2V Modular Cam Upgrade

One of the most powerful upgrades you can make to your 4.6L 2V is a cam swap.

By Richard Holdener/Photos By Author Now that the 5.0L Coyote has taken center stage, few eyes are fixed on the 1996-2004 Mustangs. Truth be told, the 4.6L two-valve (2V) was introduced way back in 1991 in other Ford vehicles, but it wasn’t until 1996 that it found a home under the hood of America’s favorite pony car. When first introduced, the ... Read More »

Clone Wars: 289 Shelby Stroker

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By Richard Holdener/Photos By Author What looked like a Shelby 289 Ford, was actually a Comp-cammed, stroker ready for some serious action. If you are a Mustang, or even Ford fan, chances are strong that you have heard the name Shelby. An accomplished racer, Mr. Shelby was best known for providing the world with one of the most widely recognized automotive ... Read More »

Still a Float: SBC Stroker Spring Upgrade

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By Richard Holdener/Photos By Author Sometimes performance upgrades come from desire, while others out of sheer necessity. Unfortunately for us, this valve-float (actually control) test was the latter. It is often said that the whole is more important than the sum of its parts, and this is certainly true when it comes to the internal combustion engine. Think about running a ... Read More »

Better With Boost: LS Turbo Cam Swap

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By Richard Holdener/Photos By Author What turbo motor couldn’t use an extra 100 hp or so? Okay people, say it with me, if you want to make your LS more powerful, change the cam. A cam (and springs) should always be the first upgrade you make to any LS motor, as it is the last component that the otherwise perfect factory ... Read More »