Category Archives: Engines

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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Building a 461 Old School Pontiac (with Fuel Injection!)

Keith Dorton of Automotive Specialists takes a junkyard 389 block (with missing main caps) and turns it into a 416 cubic inch Pontiac V8 with the classic triple-deuces look except with trick modern fuel injection. Please note: In the video I call the block an original 389. I think this is actually a more modern…
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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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Jeep Straight Six Stroker Build: Big Power on a Budget

The Jeep straight six is one of the greatest engines of all time. But that doesn't mean it can't be improved. Newcomer Racing shows us how to put together a big power, naturally aspirated stroker 4.0 Jeep engine without spending big coin. The basic recipe is to use the block and connecting rods from a…
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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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The Engine That Replaced the Ford Flathead

The Y-Block was Ford's first overhead valve V8 engine and the design the company felt was worthy to replace the world-famous Flathead. The Y-block first appeared in 1954 and ran in cars and trucks until 1964 in the United States and even longer in other countries. But the engine has some serious oiling problems that…
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Win the Ultimate Stock 5.0 Block Engine

Holley is giving this 500-plus horsepower 5.0 stroker engine away December 2, 2019, and it can be yours. Check it out and sign up for the sweepstakes here: www.holley.com/win This build is based around a stock 302 Ford block. We're talking about the old pushrod block from the Fox Body Mustangs, not the new overhead…
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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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612 Horsepower Pump Gas Ford Build

Prestige Motorsports is a longtime race engine builder that also builds some pretty hot street/strip engines for a variety of applications. I've known these folks for years, but this is our first engine build video together. So, of course, we had to go big. How about a 427 cubic inch Ford that makes 612 horsepower…
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