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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 »

All Dialed In: What is Tuning Worth?

Tuning is an important element when looking to maximize the power output of any combination, but what happens if you miss on the tune?

Words and Photos: Richard Holdener When we run tests on intakes, camshafts or cylinder heads, one of the questions we often get is, do you tune each combination? The obvious answer is yes, as tuning each combination to maximize the power output is the only way to know the true difference between them. This becomes even more critical when the ... Read More »

More Than Cams

Think of this stock, rebuilt 302 Ford as a blank canvas, with nothing but power potential!

Words and Photos: Richard Holdener By now, everyone should realize that COMP Cams offers an impressive array of cam grinds for most performance applications. You would be hard-pressed to find an application where they didn’t offer an off-the-shelf cam grind to suit your needs, but they also offer custom grinds for those wanting something special. After the factory adopted them, hydraulic-roller ... Read More »

Attitude Adjustment: Valve Lash for Power

A change in valve lash on a solid flat-tappet (or solid roller) cam can change the attitude of your motor!

Words and Photos: Richard Holdener Whether you have a Ford, Chevy or Dodge, one of the key elements in improving the power output is the right camshaft. The cam is often described as the brain of the internal combustion engine, as it synchronizes the valve events that all but determine the character of the motor. Mild cam timing will obviously ... Read More »

Double Dipping: Supercharged 5.0L Fords

Even on stock 5.0L, nothing adds performance like a little boost!

Words and Photos: Richard Holdener  What could possibly be better than a test where we add a supercharger to a 5.0L Ford? The obvious answer is adding boost to a pair of 5.0L Fords, one stock and one modified, of course! In fact, the great thing about boost from a supercharger is that it will improve the power output of ... Read More »

Let’s Talk Torque: LS Truck Upgrades

We all know a cam is the go-to upgrade for any LS, but for truck guys, mild is the new wild, especially when you combine it with a cheap set of cylinder heads!

Words and Photos: Richard Holdener We all know that adding a cam to an LS application is the go-to method of power production. The question then becomes, how much cam do I add? Cam swaps can easily improve the power output of an otherwise-stock LS application by over 100 hp, but are all LS owners looking for maximum power production? ... Read More »

Building Better Boost: Turbo LS Cam Swap

Why do you need to upgrade your cam when you have boost?

When it comes to improving power on almost any motor, few things can rival boost. This is especially true of the LS platform, as they seem to take to boost like a proverbial fish to water. The great thing about boost is how easy it is to get extra power. Whether it comes from a supercharger, or (like in our ... Read More »

LY6 Cam Upgrade

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Words and Photos: Richard Holdener We have seen it happen again and again, but no matter how many times you see the impressive power gains offered by a cam swap on an LS application, it never gets old. The go-to LS for most enthusiasts remains the venerable 5.3L. Used in millions of GM truck applications, the workhorses are available in ... 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 »