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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 »

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 »

Street Stroker 351W Gets a COMP XFI Cam

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Words and Photos: Richard Holdener When it comes to coaxing more power from your combination, there are a number of different avenues. Bolt-ons are a time-honored tradition, as bolting on the right set of heads, cam, and/or intake can yield substantial results. Of course, there is always boost, and everyone knows that all motors, including our Ford stroker, work well ... Read More »

Displacement vs Back Pressure

After installation of the turbo system on the larger 6.2L, the modified LS3 produced 807 HP and 747 lb-ft of torque. The peak boost pressure on the 6.2L was 6.9 psi, with a peak back pressure reading of 13.8 psi. Bigger motor equals more power equals more back pressure!

Words and Photos: Richard Holdener Unless you have been hiding under a rock for the last decade or two, the hottest thing going right now is the LS engine family. It is hard to believe that it was even possible to replace the original, and wildly successful, Small Block Chevy. After all, the original mouse motor was successful in just ... Read More »

Ford 306 Cam Swap

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Words And Photos: Richard Holdener Nostalgia is a funny thing. Case in point, the original muscle cars. Naturally, we fondly remember the hot muscle motors of the original muscle car era, but truth be told, are these memories tainted or otherwise artificially enhanced by nostalgia? As powerful as the original Mustang, Camaro, and Challenger motors were, the new ones are even ... Read More »

Top 10 Cam Failure Culprits

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Cams, cams, cams.. While camshafts can and do “go out,” something other than a bad core more often than not is to blame. Below are 10 things to think about before calling foul on your cam. COIL BIND Coil bind is when a spring compresses solid before or during full camshaft lift. This stack of metal stops the valve train ... Read More »

Low Buck DIY: LT1 Adjustable Cam Gear

We chucked up our trusty .350 bit and made our way through the metal, slotting the holes.

When upgrading our LT1 to an LS1-style ignition with the bolt-on kit from EFI Connection, we began installing our camshaft from COMP Cams with the factory cam gear. We found our Top Dead Center and then our Intake Lobe Centerline. To meet our desired 111 degree intake centerline, the cam core was ground at 115 degree lobe separation angle with ... Read More »

Finding the Intake Lobe Centerline

Step 3: Roll the cam backward until the gauge reads .50 lift before max lift and take a degree reading from the cam wheel.

Finding the Intake Lobe Centerline is essential to degree a camshaft, and it’s easy. See our Finding Top Dead Center article to learn how to set up the degree wheel. Read More »

Finding Top Dead Center

Step 4: Remove the piston stop and roll the engine back around until the pointer hits zero. This is your Top Dead Center.

Finding Top Dead Center on an engine is a four-step process made easy with a piston stop and a degree wheel.   Read More »