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Featured Articles

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 »

$10K Drag Shootout Episode 1: “The Arrival”

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Meet the four teams that are battling to win the $10K Drag Shootout – a competition where each team gets $10,000 and 10 days to build a drag car. Team Boddie, Stinky Pinky, Team Bigun, and the COMP Cams Dream Team are stocked with some of the most talented drag racing fabricators, tuners, and drivers in the world. Thrills, drama, ... Read More »

5.3L Accessories: What Are They Worth?

How much power is a fan worth, and how the hell do you get these stupid things off?

Words and Photos By: Richard Holdener One of the most common questions we get while dyno testing our typical 5.3L LM7 LS motor is how can a stock 5.3L make 355 hp? This is a fair question, given the fact that it was rated at just 285 hp (275 for the early versions). Do we not know what we are doing? ... Read More »

Battle of the Sixes: LQ4 vs LY6

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Words and Photos: Richard Holdener  Time, they say, marches on and that is good news for LS enthusiasts. The reason time is important for LS enthusiasts is that as each year goes by we get more and more engines in the wrecking yard to choose from. Not only do we get a fresh supply of motors for the wrecked vehicles, ... Read More »

Rectangle vs Cathedral Port Cam Test

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Words and Photos: Richard Holdener Okay LS enthusiasts, by now you should have gotten the memo that the first upgrade you should make to your motor is a cam swap. Of course, a bigger cam will also require a spring upgrade, but that is just common sense (or it should be). We all know that the right cam can offer ... Read More »

Spring Into Action

Before you think about a cam swap, better make sure you have sufficient spring pressure.

Ford 306 Spring Upgrade Words and Photos: Richard Holdener Making more power is a common goal, and the great thing about wanting more power is that there are many ways to go about getting it. Though we applied what we learned to a 5.0L Ford combination, it works equally well on just about every engine family out there, from Ford ... Read More »

FAST Announces Improved EFI Training for 2018

FAST 2018 Training Courses Event Graphic Web

FAST® has revised its popular fuel injection training program to include courses better tailored to participant experience levels and individual needs, all housed in the dedicated COMP Performance Group™ training facility. After a successful 2017 class series, instructors have fine-tuned the course curriculum. FAST® EFI™ training now includes two classes, an Intro to FAST® EFI™ class aimed at the self-tuning ... Read More »

The Mean Streets: FAST EFI Upgrade

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Words and Photos: Richard Holdener  Losing control is not usually a good thing (okay, maybe once in a while!), but not having full control of the tune on your performance motor is definitely bad. The advent of self-tuning EFI systems has simplified converting a carbureted performance motor to modern fuel injection. These systems, like the EZ-EFI offered by FAST, rely ... Read More »

The 100 Horsepower Upgrade: Cam Only 5.3L Test

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Words and Photos: Richard Holdener  Despite being introduced way back in the 1990’s (1999 to be exact), and being replaced by the new Gen V LT engine family, the LS engine still reigns supreme. One need only look at the popularity of the LS for all manner of performance, including its use for engine swaps. If market sales are any ... Read More »