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Product & Installation Articles

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 »

Is Bigger Always Better: 92 vs 102mm Throttle Body Test

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Words and Photos: Richard Holdener The question on the table today, is bigger really better? The quick answer is almost always yes, especially when it comes to things like throttle bodies. I mean really, doesn’t a larger throttle body flow more than a smaller one (of equal design)? True enough, the larger 102-mm FAST throttle body certainly flowed more than ... 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 »

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 »

Ford 306 ZEX Test

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Words and Photos: Richard Holdener How many times have you been behind the wheel and found yourself wanting just a little more power? Heck, let’s not stop at a little more. How many times have you wanted a LOT more? What if there was a way to have an extra 100 HP at the push of a button? Wouldn’t that ... Read More »

LS3 Stroker Cam Swap

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Words and Photos: Richard Holdener The camshaft is one of the key components in the success of any LS build. Even if you have a serious stroker with the best flowing heads and the hottest intake, they can’t be expected to provide optimum performance without the right cam timing. To provide maximum performance, all of the individual components must work ... Read More »

More Motor and More Blower

Blowers, cams, and big blocks, oh my!

Words and Photos: Richard Holdener There is a very famous saying among performance enthusiasts that goes something like this: No matter how much power you give someone, they will always want more! This is especially true of racers, but even applies to hardcore street guys. The problem is that once we have sampled what feels like all the power we ... Read More »