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First-of-its-Kind Compound-Turbo L5P Duramax Engine

While incredibly rewarding, nothing about this L5P Duramax build was easy for Lead Foot Diesel Performance – everything was custom or a first. From the billet crank to the one-off compound turbos, this L5P Duramax is impressive. Check it out!

L5P Duramax engine
Paul Vasko’s LML Duramax-Powered Diesel Dragster

During our weekend at the 2023 Ultimate Callout Challenge, there were plenty of fun conversations, but speaking with drag racer Paul Vasko was definitely a highlight. His passion is contagious, and his diesel dragster is definitely badass, thanks in part to a turbocharged LML Duramax engine. It’s our Diesel of the Week brought to you

Paul Vasko LML Duramax
All-Billet Duramax Drag-and-Drive Engine

Having been put on the back burner due to Wagler Competition’s popular DX Duramax engines, this brand-new billet Duramax engine has finally made it to the forefront. Rather than being aimed at truck pullers, this lighter diesel engine is specifically designed for drag racers and drag-and-drive events. Check out what makes this Duramax unique.

Wagler billet Duramax engine
L5P Duramax Swapped 1952 Chevy 3100

During this past year’s Ultimate Callout Challenge, there were plenty of awesome trucks on the track, but there were also cool trucks in the exhibitor area. Take Keith Porter’s Chevy 3100 for example. Keith did all the work on this truck himself, including swapping in an L5P Duramax engine with all the bells and whistles.

L5P Duramax
Turbocharged and Nitrous-Boosted LB7 Duramax Engine

Wyatt Stengel’s 1970 GMC K15 is a cherished family heirloom. However, that didn’t stop him from turning it into a drag racing powerhouse thanks to an upgraded LB7 Duramax engine. Check out what went into the four-year project that blends aesthetics and horsepower.

Triple-Turbo 6.6L LLY Duramax Engine

The LLY Duramax often catches some flak for having overheating issues, but that doesn’t stop some people from using it in their one-off diesel builds. Thomas even went as far as putting triple-turbos on his engine!

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.

Cometic LML/LGH Duramax Top End Gasket Kit

The gasket kit fits a 4.130″ bore with a .047″ thick MLX cylinder head gasket.

Single-Turbo LBZ Duramax Engine

This LBZ Duramax came from a donor truck Josh Kaye had purchased at an auction. After bringing it home, he tore everything apart and started building it back to the 850-horsepower state it sits at currently. Check it out!

1,400-Horsepower Turbocharged LB7 Duramax

Since 2019, Daman Perry has been building up his diesel performance shop DP Customs. To show off his work, he’s been continually upgrading his 03′ Duramax truck, complete with a 1,400 horsepower LB7 to boot. Check it out!

LB7 Duramax-Powered 1970 Chevelle

There aren’t many diesel-powered vehicles that show up to drag-and-drive events, but when they do, they’re usually awesome! Case in point is Rick Fletes’ Chevelle, which is powered by a custom-built LB7 Duramax engine. We got the details from Rick as he waited in the staging lanes for his first pass of Sick Week 2023.

David Pilgrim’s Dual Compound-Turbocharged 6.6L LBZ Duramax Engine

David Pilgrim and his wife Debbie began looking into drag racing after attending an NHRA event, which eventually led to the pair entering the Bonneville Salt Flats scene. Following a few turbocharged motorcycle builds and a C5 Corvette, David got the idea for a 1954 Chevrolet 3100 with a dual compound-turbocharged 6.6L LBZ Duramax. It’s

1,500-Horsepower LB7 Duramax Engine

Rick Fletes first dropped this LBZ Duramax under the hood of his 1970 Chevelle 14 years ago. Since then, he’s put around 150,000 miles on the car and has showed it off at countless drag competitions. Check it out!

1,000 Horsepower LB7 Duramax Engine

Like many before him, Bryan Woitas got bit by the diesel bug after experimenting with some mild power-adders on his daily driver. Years later, he has a 1,000-horsepower LB7 Duramax to show off!

Twin-Turbo LB7 Duramax-Powered Z28 Camaro

At the 2022 Ultimate Callout Challenge, the Exergy booth had a Z28 Camaro parked in front. The car caught out attention, but our interest was piqued when we noticed it was a twin-turbo Duramax engine and not a gas engine sitting in the engine bay. We spoke to Lavon Miller of Firepunk Diesel, the shop

Dual Compound-Turbo 6.6L LBZ Duramax Engine

Not only does this 1954 Chevrolet 3100 house a hefty 6.6L LBZ Duramax engine, it boasts a quad-turbo setup and enough piping to blow your mind! Check it out!

6.6L LLY Duramax Engine

Brian Tom’s 05′ Silverado “Goldilocks” is powered by a 6.6L LLY Duramax that makes around 1,100 horsepower on nitrous, it’s our Diesel of the Week. Check it out!

7.1L Twin-Turbo Duramax Engine

Sterling Diesel Performance is showing off its stunning, fully restored 1972 Chevrolet C10 at the 2022 SEMA Show. Under the hood is a 7.1L Duramax engine with a unique twin-turbo setup. Check it out!

7.1L Duramax
Avoid LB7 Duramax Injector Leaks

LB7 Duramax engines are very prone to leaking on the injector return line underneath the valve cover, causing the crankcase to fill with diesel fuel, which leads to all kinds of issues. LinCo Diesel Performance developed a method to test for this, which saves the shop from countless comebacks. Check it out.

Mattie Graves’ Twin-Turbo LML Duramax Engine

Mattie Graves is an up-and-coming star in diesel drag racing. Along with her dad and their shop, Hollyrock Customs, Mattie competes in the ODSS Pro Dragster class with the help of this twin-turbo LML Duramax engine. She’s looking to race more with PDRA and get her ETs under 4-seconds. See what goes into this Duramax