Supercharged Gen III HEMI Engine - Engine Builder Magazine

Supercharged Gen III HEMI Engine

Recently, BES Racing Engines had an ‘old friend’ in the shop for a freshen up job. This supercharged Gen III HEMI engine has been worked on exclusively by Bischoff and the guys at BES for 5 years now. Find out what went into the job and what power the freshened up engine is pumping out.

Tony Bischoff started BES Racing Engines in Guilford, IN back in 1985, and founded the shop doing stock rebuild work and general repair.

“Believe it or not, I learned most of what I know about performance by building stock motors,” Bischoff says. “Providing a warranty meant learning how to make an engine work right the first time as well as being durable and able to run for tens of thousands of miles. The parts had to be right or the engine would be back, so my ‘stock motor’ experience proved to be a solid foundation for building high performance engines.”

Today, his shop has 15 full-time employees and 90 percent of the work surrounds high performance engines – mostly drag racing applications, but truck pulling, NMCA street car and even some marine engine work comes through BES as well.

“We do engines for everything really, but primarily drag racing,” Bischoff says. “We focus on naturally aspirated, turbo and nitrous engines. Nitrous would probably be the largest percentage of our power adder stuff. I thank God for nitrous everyday because it’s hard on parts.”

BES Racing Engines is a full machine shop too, featuring an engine dyno and several CNC machines for head and block work.

Recently, BES had an ‘old friend’ in the shop for a freshen up job. This supercharged Gen III HEMI engine has been worked on exclusively by Bischoff and the guys at BES for 5 years now. The shop works closely with Michael Bruce from HHP and engine owner Rob Goth on the supercharged Gen III HEMI, which runs in X275 and features an aluminum G3 block.

“When we received it [this year], the block had a crack between two cylinders, so we welded a piece of billet in there and re-sleeved it,” Bischoff says. “After that, the engine really just needed freshening up with new rods, pistons, rings, bearings, gaskets and stuff like that. When we re-sleeved it, we basically re-bore the counter bores and the bores for the sleeves and we press the sleeve in and bore it and re-o-ring it. The engine also had a blown gasket and the deck was burnt out, so we had to weld that up too.”

This Gen III HEMI got freshened up with Power Bore sleeves, GRP aluminum rods, Ross pistons, Total Seal rings, Clevite bearings, a COMP Cams camshaft, Jesel valve train, an ATI balancer, a Winberg crankshaft, Titek cylinder heads, and a Marcella billet intake.

While the shop does have a dyno in-house, Bischoff says it is only good up to around 1,800 hp. BES is working on upgrading their dyno to handle the 2,200 horsepower that this supercharged Gen III HEMI pumps out.

“Based on ET and weight, it has to be at least 2,200 horsepower,” he says. “It runs 4.30s in the 1/8-mile at 3,300 lbs. and probably 6.40s in the 1/4-mile. The engine runs on race gas and has a compression ratio of 10.5:1 with 30 lbs. of boost and features a Procharger centrifugal supercharger and FuelTech fuel injection.”

It’s now ‘off to the races’ again at the X275 tracks.

The Engine of the Week eNewsletter is sponsored by Cometic Gasket.

If you have an engine you would like to highlight in this series, please email Engine Builder magazine’s managing editor, Greg Jones at [email protected].

You May Also Like

All-Billet 903 cid Pro Mod Engine

Pat Musi of Musi Racing Engines has been meticulously developing and tweaking his 903 cid Pro Mod engine combo since 2010. We got to see the latest and greatest version of this nitrous-powered billet beauty. Check out our first Engine of the Week of 2024!

Pat Musi Racing Engines 903 cid Pro Mod engine

In 2023, we got the chance to showcase a bunch of cool engine content from our visit to Musi Racing Engines, and 2024 kicks off much the same, with one more engine from the mind of Pat Musi. Pat’s 959 cid Pro Mod big block Chevy engine platform has become a staple for the Mooresville, NC shop and many of its drag racing customers. However, this all-billet 903 cid version of that engine showcases a few little nuances as it’s for a customer in Sweden. The engine was getting ready for assembly while we were in Mooresville, and Pat walked us through the full build.

Naturally Aspirated 540 cid Big Block Chevy Engine

After having issues with an engine built elsewhere, a customer came to H Squared Racing Engines to build him a streetcar combo. Utilizing an existing block and crank, H Squared was given the freedom to spec the rest of the engine. Check out the result!

ProCharged Billet V-Twin Hemi Engine

Known well for the shop’s 4.8 and 4.9 bore space Hemi platforms, Noonan Race Engineering took those lessons learned and recently applied them to an all-billet ProCharged V-Twin Hemi engine for nitro motorcycle applications. You don’t want to miss what’s inside this engine!

ProCharged 557 cid Big Block Chevy Engine

This is one of the most popular engine combinations at PAR Racing Engines. Built from 540 cid to 588 cid, this ProCharged 557 cid big block Chevy is a proven setup for Top Sportsman, Top Dragster and even drag-and-drive applications. Check out what makes this such a great build!

Twin-Turbo 4.8” Bore Space Billet Hemi Engine

There’s a lot of impressive engines that come out of Noonan Race Engineering in Spartanburg, SC. But, the 4.8″ bore space billet Hemi engine was the one that started it all for the high-performance engine and machine shop. Check out the details of this water block 4.8″ bore space billet Hemi.

Other Posts

Noonan’s New Billet K24 Honda Engine

We aren’t trying to hide the fact that we’re impressed by what Noonan Race Engineering is capable of. That’s why we will always jump at the chance to highlight what NoonanRaceEngineering has coming down the pipeline, and the shop’s latest endeavor is a billet K24 Honda engine, which was showcased at the 2023 PRI Show. We caught

Noonan Race Engineering Honda engine
Bullet Racing Engines’ 5.000″ Bore Space Billet Big Block Chevy Engine

We love when we get a chance to catch up with Nick Bacalis of Bullet Racing Engines. As the in-house engine shop for Larry Jeffers Race Cars, Nick is always working on high-horsepower, high-dollar builds for race customers, and this big block Chevy engine that we saw at the 2023 PRI Show is no exception.

Bullet Racing Engines Big Block Chevy engine
ACE Racing Engines’ 427 cid Billet LS Drag-and-Drive Engine

We’ve known Stefan Rossi for a number of years now, and his work at ACE Racing Engines is something to behold. He’s an engine builder who never rests on his laurels, and is always pushing himself and his engines to new levels. Case in point, he’s developed a partnership with Noonan Race Engineering to utilize

Supercharged 388 cid LS-Powered Cadillac

We recently made a trip to Houston, TX and visited the School of Automotive Machinists & Technology to get a tour of the facility and see what all they had going on. In addition to their many classes and awesome facility, they had a Cadillac in the shop, which featured a supercharged LS engine for