1952 Chevy with a 6.7L Cummins Engine
Mickey Unverstagt’s ’52 Chevy is a strikingly restored vintage pickup on the outside, and a down-to-business drag truck on the inside — complete with a decked-out 6.7L Cummins powerplant under the hood. Check it out!
Single-Turbo 6.7L Cummins Pro Mod Engine
Johnny Gilbert of Stainless Diesel has a brand-new setup this year to help him compete with the gas Pro Mod guys. He’s been dialing in a Pro Mod diesel Corvette featuring a Wagler Competition-built, all-billet, 6.7L Cummins engine. With 3,500 hp on hand, Gilbert is looking at 3.80s in the eighth! Check it out!
Johnny Gilbert’s All-Billet 6.7L Cummins-Based Pro Mod Engine
We got to catch up with Johnny Gilbert of Stainless Diesel during the 2022 Ultimate Callout Challenge. He was there for the weekend with his team and a brand new Pro Mod Corvette, which houses an insane, all-billet, 6.7L Cummins engine built by Jeremy Wagler of Wagler Competition Products. It’s our Diesel of the Week, which
Twin-Turbo LML Duramax Dragster Engine
Mattie Graves competes in the Outlaw Diesel Super Series (ODSS) dragster class, and is the only female doing so. Sitting behind her dragster’s cockpit is a powerful twin-turbo LML Duramax capable of making 4-second passes. Check it out!
Iron Rod – a 1947 Federal with Dual Cummins Engines
WelderUp owner and TV personality Steve Darnell went to great lengths to build this vintage 1947 Federal welding truck, which has a 5.9L Cummins under the hood and a 4BT Cummins powering a Lincoln SA200 welder in the bed. This truck defines power in the front and utility in the back. Check it out!
Custom Welding Truck with Two Compound-Turbo Cummins Engines
Motivated by the steel industry and those coming back from WWII who got into welding, Steve Darnell built this custom welding truck complete with a 12-valve 5.9L Cummins as well as a 4-cylinder Cummins engine – both compound turbocharged. We got the details of the build during the 2022 Ultimate Callout Challenge.
Eric Merchant’s Compound Turbo LML Duramax
Eric Merchant of Merchant Automotive was another valiant UCC competitor who opted to run a single truck this year. Under the hood of his GMC is a compound turbo LML Duramax. Check it out!
Chris Patterson’s Triple-Turbo 6.7L Cummins Engine
Chris Patterson of Unrivaled Diesel earned a 4th place finish at the 2022 Ultimate Callout Challenge thanks to this powerful triple-turbo Cummins engine. Check it out!
3,000-HP LLY Duramax Engine
Brett Deutsch’s 1969 Chevy C10 currently holds the record for the fastest diesel-powered Pro Stock truck in the quarter mile. Under the hood is this single-turbo LLY Duramax engine. Check it out!
DNR Custom’s Billet 6.7L Cummins Engine
At the end of April, the performance diesel crowd gathered at Wagler Motorsports Park in Lyons, IN for a weekend of racing, which included the Outlaw Diesel Super Series. Among the notable competitors was Derek Rose of DNR Customs and his brand-new, billet, 6.7L Cummins-based engine named Billet Bitch 2.0. According to Derek, this new
Derek Rose’s Triple-Turbo 6.7L Cummins Engine
Derek Rose of DNR Customs has one fast Cummins truck. In fact, it’s currently the fastest 4WD diesel truck in the world! Check out the triple-turbo 6.7L Cummins engine under the hood!
Billet Aluminum 460 Duramax Engine
Tony and Tyler Burkhard of Dirty Hooker Diesel are staples in the diesel world and of the Ultimate Callout Challenge. The Duramax-focused shop always brings its A game to the competition. This year, DHD utilized a few new goodies inside its 460 Duramax for their truck Last Minute Hooker, and even added triple turbos for
