Scooby’s Six Liter: The Powerplant In This Machine Is No Mystery

Once again, you just never know what you’ll find during the SEMA Show in Vegas. We actually came across another Mystery Machine (they’re becoming very popular for some reason) and this one wasn’t a miniature engine, it wasn’t a high-horsepower rotary engine, it was stuffed with a 6.0-liter Power Stroke engine and a 5R110 transmission!

We reached out to Fourway Motors and talked to Leonard about his super-rad, ’61 Econoline Van and it comes with quite the story and goody list. “The van came to me in 1996 as a communications vehicle for the Northwest Territories for the government surveillance,” Leonard said. “A local guy to me worked for them and he was told to scrap it. Instead, he headed north with it to someday restore. Unfortunately, he passed away before that could happen.”

Leonard has been involved with SEMA a few times with other builds but he and the mystery machine are here together for the first time. “I was approached to do the International RATical Rod Build-Off” for the 2020 year and decided we would take it on. Unfortunately, it didn’t pan out that way and it was delayed until this year,” Leonard explained. “We wanted to do something you haven’t seen before or more handmade than normal. The more engineered parts the better.”

Per FourWay Motors Instagram, The RATical Rod Build challenge he talked about is a drive-off competition. Competing against other builders across the globe, Leonard was challenged to build a drivable RATical hot rod. Once complete, teams met in Lincoln, Nebraska. From there, they had to drive 1,400-miles to the SEMA Show in Las Vegas.

Leonard and his team used a 2006 E450 as a donor vehicle which would eventually power this hot rod. “We ended up pulling and using the 6.0-liter Power Stroke engine, the 5R110 transmission, and the Dana 70 axle,” he said. “We outfitted the engine with the necessary equipment needed to survive day-to-day operations and then some. It was then when we got the support from BD Diesel.”

Leonard went on to explain that BD had supplied head studs, a Screamer II turbocharger, exhaust manifolds and up-pipes, and 90-horsepower injectors. Evolution Powertrain, a transmission company in Leonards area, fixed up the 5R110 to handle the abuse that was imminent. That includes hardened shafts, drums, upgraded clutch packs, billet torque converter, etc.

Other upgrades include heavy-duty axles and parts from Yukon Gear and Hublow inside the shortened differentials. On the wheels and tires, the mystery machine features Rockstar wheels supplied by Wheel Pros and a set of 50-series duals on the rear. Warren Diesel built the engine harness and wrote several of the tunes Leonard uses on his SCT tuner.

“Right now, as is, we’re making approximately 400-horsepower and 700 lb-ft of torque. With everything on kill, I think we’re capable of 600-horsepower and 1,100 lb-ft of torque,” he explained. “We have turned quite a few heads at the show this year. We’re excited to have it here.”

What do you think about the mystery machine? How about that engine combination. This is super unique and we’re so glad that Leonard brought it out! Let us know in the comments below your thoughts!

About the author

Artie Maupin

Artie Maupin is from Southeast Missouri and has an extreme passion for anything diesel. He loves drag racing of all kinds, as well as sled pulling competitions.
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