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2006 Evolution Twister Buggy - 2007 Top Truck Challenge Alternate

Posted in Events on November 1, 2007
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Contributors: Douglas McColloch
Photographers: Sean P. Holman

Clayton Kraatz came all the way from The 403 to join us at Top Truck this year. As our first alternate, his rig didn't qualify for victory this year, but Clayton certainly knows how to build a winning rig. From the chassis to the cagework, from the suspension to the steering, to the bead locks, to the spherical rod ends, everywhere you look, most everything you see on this awesome 4x4 is owner-designed and fabricated. Not surprising, perhaps, once you learn that he's the owner of Evolution Machining, makers of some of the sweetest Heims in the hemisphere.

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Owner name/city: Clayton Kraatz/Calgary, Alberta, Canada
Occupation: Owner/fabricator, Evolution Machine
Vehicle model: '06 Evolution Twister buggy
Estimated value: "$85,000 in parts, 1,500 hours in build time"
Engine/aspiration: 454ci 11:1 Chevy V-8, bored 0.060 over, Comp cam, Keith Black hypereutectic pistons, Manley valves, Comp Cams beehive valve springs and roller arms/Tunnel ram dual-mixer propane injection, Edelbrock intake manifold, custom headers
Transmission(s): JW Transmissions Powerglide, Casale marine V-drive
Transfer case: Stak three-speed
Suspension (f/r): Four-link, 26-inch Knight Stalker shocks/Four-link, 26-inch Knight Stalker shocks
Axles (f/r): Detroit-Locked Arvin-Meritor HD F-106/Detroit-Locked Arvin-Meritor HD F-106
Axle ratio: 7.17:1
Wheels: 16-inch Evolution bead locks
Tires: 49-inch Interco Swamper IROKs

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