The BLOWNup Cobra Is One Bad LS-Powered ’Stang

Big cube LS power and a big ProCharger F1A-94 supercharger sitting front and center in a 1999 Ford Mustang SVT Cobra. What more could you ask for? For Tyler Lant, not much. He’s in the process of building his dream car, as described here. As an engineer for ProCharger itself, Tyler knew exactly how he wanted to engineer his ’99 Cobra from the beginning.

What’s seen here: AFR LS3 cylinder heads, Jesel rockers, COMP Cams pushrods, PAC Racing valvesprings and retainers (as well as keepers), Innovaters West balancer, Dart SHP iron LS block. (Photo credit: Tyler Vant).

The combination was simple yet effective – following a decade-old recipe of LS power and forced induction – tucked into a more than capable (and affordable) Ford Mustang platform. The result was to go fast down the quarter-mile with no drama. Well, perhaps no expected drama, we’ll say. As evident by the powerplant choice, the theme for Tyler’s Mustang is to go fast.

He ditched the original 4.6-liter DOHC Four-Valve V8 engine for a built from the ground up LS engine. The new mill makes use of a Dart Machinery SHP iron block and a custom rotating assembly; forged pistons from Diamond Racing (crafted to a custom 4.125-inch bore), a Callies 3.75-inch forged crank and a matching set of Callies forged I-beam connecting rods. A pair of Air Flow Research LS3 Mongoose cylinder heads adorn the custom bottom-end and features Jesel valvetrain components, PAC Racing valvesprings, Ferrea Racing valves and a custom camshaft from Cam Motion ties everything together.

No longer powered by a 4.6-liter DOHC Four-Valve V8, Tyler's '99 SVT Cobra features a 401ci ProCharged LS engine. (Photo credit: Tyler Vant).

Of course, it doesn’t hurt to have that big ole Holley 102mm Hi-Ram EFI intake manifold feeding all of that air from the ProCharger, either. The big cube ProCharged LS engine sends all of that power to a built TH400 three-speed automatic transmission and through a built 8.8-inch rearend from McCollum Welding and Fabrication. An entire UPR Products catalog’s worth of suspension products helps Tyler plant all of that power to the ground on Mickey Thompson drag radials.

“The guys at SDPC Raceshop know how to build killer race engines, and not just big-blocks,” Tyler enthused in a Facebook post. “LS mastermind Kurt Urban spec’d it, did the machine work and assembled this 401ci bad boy.”

One aspect of Tyler’s build that piques our interest is the incorporation of a big bore, short stroke engine build. Most LS enthusiasts opt for a small bore (or big bore) and even larger stroke, such as a 408ci setup. We’ve seen the success that a big bore/short stoke LS engine can bring in the past (especially with a centrifugal blower), however, so we commend Tyler’s choice of using such a setup. Kudos, sir.

For more information on Tyler’s build, check out his Facebook page dedicated to The BLOWNup Cobra. And, if you’re interested in a ProCharger kit for your own LS-powered ride, check out ProCharger’s website.

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About the author

Harrison Noble

Living in San Diego for most of his life, Harrison was exposed to a variety of cars at an early age. His passion for anything that is fast, or has a V8, brought him to Power Automedia.
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