The Ultimate Callout Challenge is the one of the best places to find unique and interesting diesel trucks and engines, and despite most competitors opting for a Cummins under the hood, we do see the occasional Powerstroke. When scouting out the back half of Lucas Oil Raceway over the course of the competition weekend, we glanced over at a 6.0L Powerstroke and knew we had to have a quick chat with owner and builder Harlan Clemons.

Clemons owns Outlaw Diesel Performance, a shop local to Indianapolis, IN that handles parts, modification, service, and repair. When he’s not running the shop, he’s building up his F-350 dually that he races in the 5.90 index class.

Like many rags-to-riches stories we hear about a particular build, Clemons bought the truck around 10 years ago from a company for only $500 dollars. At that time, it had a 9-foot bed, but that was quickly cut down and Clemons began racing in the 7.70 class. He then moved to the 6.70 class and now he’s finally sitting comfortable in the 5.90 index class.

“This diesel stuff is an addiction,” Clemons admits. “It’s hard to be completely happy with something, but I think this build is getting pretty close to being finished. I’d guess we’re probably going to 4-link the front end and then just try to shove on it a little harder and see what we can do with the single turbo.”

The 6.0L has a filled solid block as its base with a standard bore and everything you need in terms of a turbocharged setup. Front and center is a mounted 4th Gen intercooler kit off of Jesse Warren’s famous “Shark Bait” pulling truck. In conjunction with a T6 Stainless 80/96/1.15 housing, wastegate, and S480 turbo, the turbo system under the hood works phenomenally, according to Clemons.