2004 GMC Sierra 2500 HD - 1,000HP Work Truck

No, We’re Not Lying

Jason SandsNov 1, 2009
If you've read the title, you've probably second-guessed the truck already. Yeah right, 1,000 hp out of an '04 GMC Sierra 2500HD work truck? We're here to assure you that yes—it's true. Check out the scratches in the bed and the hookups for the air compressor. Ed Wayne is known for showing at local sled pulling events with his GMC dragging an 11,000-pound camper full of weights and pulling tires. Then he unhooks the truck and competes in the 3.0-Class—typically finishing near the top. When he's done, he loads his trailer back up, hooks it to the GMC, and drives home. Drag racing? That's no problem for Ed either. How about 6.74-second eighth-mile elapsed times? That's mid-10s in the quarter-mile, folks. Dynos? Ed doesn't like them, although he has run on one long enough to make 1,029 hp at the rear wheels with a whiff of nitrous. How does he do all of this? Well, read on and we'll tell you.
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For starters, Ed bought the truck new in 2004, so it has almost five years of development behind it. Also, Ed happens to run Ed's Diesel Performance out of Landis, North Carolina, so you could say he knows what he's doing. Finally, Ed has been working with some of the best people in the business to modify his truck.
1,000HP Work Truck Engine
For the engine, Ed turned to Guy Tripp of SoCal Diesel, who supplied him with a hot towing cam, a set of Stage 1 cylinder heads, and a full valvetrain setup. A set of machined and coated LB7 pistons lower the compression ratio to roughly 16.25:1, and the complete engine was assembled by Tony Burkhart at All-Season Service and Sales.
With a stout engine to work with, Ed then went about making some serious power. A second, unmodified CP3 injection pump from an LB7 Duramax was added with a PPE kit. Then Ed bolted in a set of injectors from Pro Formance Fuel Injection that flow 45 percent more fuel than the stock units. A mammoth 74mm inducer Garrett GT4202R turbocharger takes care of the airflow side of the equation and provides the engine with up to 58 psi of boost. Engine gases are handled by a surprisingly quiet two-muffler exhaust system. The final step was excellent tuning, which was handled by Tony Martino at Ridgerunner Diesel.
With this type of power on tap, Ed knew his transmission needed some serious help. A Stage V transmission from Sun Coast Converters was used to keep the transmission from exploding, and an experimental converter from Sun Coast was fitted to allow the big turbo to spool, yet still be tight enough to lock up without frying the converter. Moving on to the axles and suspension, everything is stock, save for a Super Diesel centerlink, tie-rod sleeves, and a front ARB Air Locker in the AAM 9-1/4-inch axle.
After we got all the dirt on Ed's truck, we realized how it could be so powerful, yet still be reliable. A careful selection of parts, tuning, and years of experience with his vehicle has led him to build what is perhaps the ultimate daily driver.

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