Blueprint Engines’ 3.6-liter turbo four-gasser produces 340 hp and 500 lb-ft*

Blueprint Engines in Kearney, Nebraska has been making automotive crate engines for over 40 years. The Blueprint division called Origin Engines develops “purpose-built industrial engines.” Commercial engines range from a 3.6-litre four-cylinder gas mill for applications such as power equipment and forestry to a 23.9-litre V12 diesel engine for really heavy-duty work. Someone on the Blueprint automotive side apparently got the idea to put a GM LS head on Origin’s 3.6 liter and run the numbers to see what the result was. Blueprint liked the idea so much it brought the 3.6-liter four-cylinder to the same Performance Racing Industry show in Indianapolis where Ford Megazilla debuted, the company said it had an engine looking for a market. The ride reports that the engine puts out 340 horsepower and 500 pound-feet of torque “with a modest turbo”. PRI participants liked the engine so much that Blueprint now believes there is a market and has started a list of hand raisers.

Let’s clarify that this little guy still only exists on a drawing board, which means the numbers are only conceptual as well. The 3.6-liter is real though, with a head from Ford’s 302 small block V8. Blueprint told The ride that it is the heart of a generator sold by an unnamed major manufacturer. In addition, the 3.6 is already available in EPA-certified packaging and can run on natural gas and propane in addition to pump gas. We assume that since Blueprint has been around since 1981, the engineering team understands how the software should perform output simulations when switching from the 302 header to the LS header.

Blueprint told The ride the quoted torque figure comes on from 1,800 rpm. The naturally aspirated 2.7-liter four-cylinder in the Toyota Tacoma makes 159 horsepower at 5,900 rpm and 180 pound-feet of torque at 3,800 rpm. The turbocharged 2.7-liter I4 in full-size GM trucks—once described as “pushing the limits of the four-cylinder engine”—puts out 310 horsepower at 5,600 rpm and 430 pound-feet of torque from 3,000 rpm. Way back in time, the turbocharged 3.0-liter I4 in the 1993 Porsche 968 Turbo S made 301 horsepower at 5,400 rpm and 368 lb-ft at 3,000 rpm.

On Facebook, Blueprint said people who stopped by the PRI booth told the company they could see the engine going into “pontoon boats, midgets, S10s, early Jeeps and more.” With a lot of work to do to get the bike ready for road use – the concept still works with the industrial cam – powersports and off-road rigs are perhaps the best, easiest answer for applications. That didn’t stop the comments from being full of restomod ideas like 1980s Toyota pickups, the Suzuki Samurai, Jaguar XJ, Chevrolet Vega, TJ Wrangler or Mazda Miata, and we have to admit that the Opel GT is more common than we would have done. expected. If you would like Blueprint to complete this job, please message them at to register your interest.

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