Ultimate Callout Challenge Archives - Engine Builder Magazine
Dodge 2500 with a Turbocharged 6.7L Cummins Engine

Tim Krueger’s current pride and joy is a 2004 Dodge 2500, a truck with a turbocharged and nitrous-boosted 6.7L Cummins engine that has been fine-tuned at Tim’s shop, TK Truck Performance. Check it out!

6.7L Cummins engine
Turbocharged 5.9L 12-Valve Cummins Engine

Logan Yelton’s ’93 Dodge has gone through quite the transformation. It was once used to transport him and his wife to prom back in the day to now burning rubber on the drag strip with 1,800 horsepower on command. This 5.9L 12-valve Cummins-powered monster has done it all. See what went into the build!

393 cid Billet Cummins Engine

When it comes to power, the engine propelling Scheid Diesel’s drag car doesn’t dissapoint. It makes 2,800 horsepower on fuel alone… no wonder it’s a record setter!

Twin-Turbocharged 12-Valve Cummins Engine

Life-sized Hot Wheels? Say less. Sean Smith and his wife built this rat rod from scratch and it was a contender in last year’s Hot Wheels Legends Tour. But it’s not only for show – thanks to a twin-turbo’d 12-valve Cummins under the hood, this ride makes quite a bit of power too!

Triple-Turbo 6.7L Powerstroke Engine

Is there anything better than a diesel dragster? Yes. One with three big S480s mounted on it. This Powerstroke was built by Dan Snyder of SPE Motorsport and we got the scoop on it at this year’s Ultimate Callout Challenge.

L5P Duramax Engine Swap

There’s not a ton of performance aftermarket additions on this build, but Keith Porter’s ’52 Chevy 3100 is unique for the fact it has a swapped-in L5P Duramax, one of very few to do so paired with a 10-speed Allison transmission.

Turbocharged 6.0L Powerstroke Engine

You can always count on Warren Diesel Injection to pull up to events in a sweet Powerstroke truck – they’ve been innovating the platform for over a decade. We saw this 6.0L at the 2023 Ultimate Callout Challenge and this thing is next level awesome.

Turbocharged 7.3L Powerstroke Engine

Every year, there’s hundreds of diesel trucks at the Ultimate Callout Challenge. As expected, most feature 6.7L Cummins engines, but that’s what makes seeing a Powerstroke build that much more special – let alone a 7.3L. We were able to find one built and owned by Corey Hurtts of CNC Fabrication. Check it out!

Sizzlin’ Summer Schedule

When it comes to favorite seasons among our industry, it would be tough to beat the summer months. Sure, it gets hot, but it’s this time of year that our industry is out traveling the country for various shows, events, and of course races – and we’re there for it. June was a very busy

Turbocharged 6.7L Cummins Engine

This week we feature another build from Maverick Diesel that we got to check out at the 2023 Ultimate Callout Challenge. This 6.7L Cummins is setup to run the 5.90 index class and features 1,100 horsepower!

Twin-Turbo LB7 Duramax Engine

It’s not very often you find a diesel engine featuring true twin turbos, and it’s also not very often you find a diesel-swapped muscle car. However, this week we bring you a build that features both! This twin-turbocharged LB7 Duramax was built by Wagler Competition and then installed in a Z28 Camaro by Lavon Miller and Firepunk Diesel. Check it out!

Turbocharged 6.0L Powerstroke Engine

In an era where so many diesel folks opt for a Cummins build, it’s refreshing to see a badass Powerstroke catch your eye. Harlan Clemons is one of those Powerstroke guys, and his turbocharged 6.0L was a sight to see at the Ultimate Callout Challenge. Check it out!

6.0L Powerstroke