Category Archives: Chevrolet

Sticking a Giant Roots Blower on a Big Inch LS3

We’re bringing you another out-of-this-world build from our friends at Prestige Motorsports. This time they are building a big-inch LS with all the modern tricks and sticking an 8-71 roots blower and an intercooler on top. This is a pump-gas powered beast that stands over six feet tall with the engine on the stand!
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Intake Manifold Test! Which LS3 Intake Makes the Most Power?

We hit the dyno hard with Prestige Motorsports as they test three very different intake manifold designs (FAST LSX R, FAST LSX HR and Holley Hi-Ram) against the stock LS3 intake — which is already very good — to see how they perform. Plus, as if that wasn’t enough, we also had to throw in…
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Building a Big Block Ripper to go Mud Bogging!

Here’s the challenge: How much naturally aspirated power can you make for twenty grand? Mud Bogging is about as All-American as it gets when it comes to motorsports. We travelled to the shops of Motorsports Unlimited to meet up with owner Lance Stillwell as he builds a 582 cubic inch big block for a Mud…
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Dual TorqStorm Blowers on a 427 Cubic Inch LS1

The GM LSX engine has been built in just about every configuration imaginable, but Holley and Prestige Motorsports took it to a new level by strapping two TorqStorm centrifugal superchargers to a bored and stroked 427 cubic inch LS1. On pump gas this bad boy makes over 1,000 horsepower without breaking a sweat.
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Dyno Testing Carbs vs a Very Unique EFI Setup

Recently Keith Dorton of Automotive Specialists built two very similar engines. They were, in fact, practically identical except for the induction. Both were 400 cubic inch small block Chevy’s with identical Molnar stroker crank and rods, Crane Cams valvetrain, and AFR cylinder heads. The difference between the two was the induction systems. One was outfitted…
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Chevy Makes an Easy 550+ Horsepower on the Dyno

You’ve got to love old school grunt. Today we have a naturally aspirated small block Chevy built by Keith Dorton at Automotive Specialists. It’s been punched out to 400 cubic inches, and naturally aspirated with a carburetor still manages to make over 550 horsepower on pump gas. Maybe best of all, this engine is built…
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The World’s Only 1,000 Horsepower, 260 Cubic Inch Chevy SB2

Here at The Horsepower Monster, we love unique engine builds–and this one definitely qualifies. We always enjoy visiting the shops of Keith Dorton, owner of Automotive Specialists in Concord, NC, because he’s always building something cool. This particular engine came about when the Hotrod Hoodlums land speed racing team out of Texas asked Keith to…
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Fixing an Exhaust Leak in Our Project Camaro

Say hello to the Horsepower Monster’s new project Camaro. The car was an Ebay victory for a mere $2,200, and there’s a reason why it came so cheap. We’ve got a pretty cool engine for this Camaro in the works, but the exhaust leak was just too annoying to ignore until then.
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