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Borowski Race Engines, Inc., Rockdale, IL

Custom CNC Engine Builders for Street, Race, Restoration & Marine. Est. 1968.

Our suite of state-of-the-art CNC machinery is the most advanced available. The staff boasts
more than 100 years of collective experience and includes accomplished racers and crew chiefs. Using only quality parts from reliable manufacturers, this combination of machinery and experience means that your engine will have more horsepower and reliability.

We are not your usual cookie cutter, generic engine-in-a-box guys, but rather a full custom shop. We will restore any American muscle engine to stock(but way better than factory), build to your spec up 4,000 hp all out race motors, and anything in between. Our builds cover the full spectrum of power adder and fuel options.

Dart Machinery has long been our preferred block supplier. In our opinion, their recently introduced LSNext® line is a game changer and the differences relative to a factory LS block are visually obvious. The bottom end strength has allowed us to push the envelope for more power and reliability. It has also opened the door for us to marry these with Whipple superchargers for an incredible range of power and performance options that will fit underneath your hood. We chose Whipple because their advanced twin screw design offers the highest efficiency, incredible instantaneous torque increases at low RPM and thanks to its vacuum actuated bypass, naturally aspirated gas mileage at cruise conditions.

This cutting edge technology has been featured in Engine Labs magazine, first as naturally aspirated build and subsequently supercharged.

Our HellFire® line of semi-custom engines are built to order on short lead times from inventoried components. In the ads below, you will see everything from bare blocks and supercharger assemblies to representative complete and fully dressed builds that can be ordered and shipped to you. If you don’t see what you are looking for, please give us a call at 815-725-2727 or send an email to ken@borowskirace.com

Current list of items for sale

Ad #182685226
POSTED: Mon, Jun 27 2016

Top Shelf Parts: All Pro, Callies, Diamond
Today's LS engines are doing amazing things. Everyone has heard about that one guy that went fast on his junkyard LS engine. That's great for some.....


Ad #182687583
POSTED: Mon, Jun 27 2016

Available Bare, Complete or BRE Customized
Borowski Race Engines has used our tuned-up version of the Brodix STS BR7 273 CNC ported head for many of our Whipple supercharged LS7s including the.....


Ad #182591847
POSTED: Mon, Jun 27 2016

Borowski Race Engines, Inc.
It just keeps getting better! When Dart Machinery first came out with their LS Next blocks, we began marrying them with Whipples, the best-in-breed.....


Ad #182689397
POSTED: Mon, Jun 27 2016

Callies Dragonslayer w Ultra Rods
Part# BRE045608/11Above Added: Wed May 4, 2016, 11:32 am ESTBOROWSKI RACE ENGINES, INC. has established its position as the leading builder of Dart.....


Ad #182233230
POSTED: Mon, Jun 27 2016

Featured in Engine Labs Magazine
The engine shown which was featured in Engine Labs has been shipped and we are about to start building its replacement. We will be incorporating some.....


Ad #182687465
POSTED: Mon, Jun 27 2016

Brodix BR7 & All Pro Cylinder Heads
These Crower shaft mount rockers are are designed to work with the All Pro '12' Series and Brodix BR7 LS7 cylinder heads. Both the All Pro and Brodix.....


Ad #182317033
POSTED: Mon, Jun 27 2016

Featured in Engine Labs Magazine
The engine shown which was featured in Engine Labs has been shipped and we are about to start building its replacement. One visible change will be.....


Ad #182682892
POSTED: Thu, Jun 23 2016

Two Blocks Available
We believe that our custom version of the Darton MID sleeved of the Dart LS Next aluminum block is the best available platform for high horsepower.....


Ad #182683172
POSTED: Thu, Jun 23 2016

As received from Dart
When Dart introduced the LS Next block in 2013, it opened the door to mechanically reliable big horsepower builds. The design featured a bottom end.....


Ad #182536238
POSTED: Thu, Jun 23 2016

We have these bare heads in stock both as-cast and CNC ported. The as-cast bare price is $1,630 as shown in the ad. Our custom CNC ported version is.....


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(815) 725-2727
Borowski Race Engines, Inc.
1545 Mound Rd
Rockdale, IL 60436
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Mon - Fri: 8:00 am - 6:00 pm
Sat: 9:30 am - 1:00 pm

The Benefits of a Borowski-Built Engine

1.Custom Made to Your Exact Specifications: With our guidance, you pick the sound, look, power and accessories. We make it happen.

2.Technical Knowledge: We make cutting edge engines for a broad range of motorsports. In season, our staff is at the track and on the water to help keep you ahead of the pack.

3.Machining Capabilities: Our CNC engine machining equipment and shop professionals are second to none. That shows in our build quality, reliability and performance.

4.Quality: Our levels of care and precision go far beyond OEM or standard aftermarket. Machining and assembly of your project is performed only by highly skilled technicians.

5.Predictability: On-time and on-budget

6.Build Time: Thanks to our CNC processes, we can complete machining quickly. We have strong relationships with our key suppliers which helps avoid delay waiting for parts.

7.Transparency: Your entire build is photographed and documented. Progress pictures are uploaded and viewable on our Flickr. You are welcome to visit in person any time and will be invited to attend the video-taped dyno session.

8.Honesty and Integrity as evidenced by our A+ rating and accreditation by Better Business Bureau.

9. Our Warranty

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106 Main Street, North Adams, MA 01247
Toll Free: 866.326.9227 • Tel: 413.663.3496 • Fax: 413.663.3615 • Email: support@racingjunk.com

Execution Stats: 0.169 sec / 6.9 MB used / 7.0 MB peak