advanced search

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

Current list of items for sale

Ad #182682892
POSTED: Thu, Aug 25 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 #182689804
POSTED: Thu, Aug 25 2016

Callies Billet Crank, Dyers Top Billet Rods
BOROWSKI RACE ENGINES, INC. has established its position as the leading builder of Dart LS Next engines by being first in line with pre-production.....


Ad #182199578
POSTED: Thu, Aug 25 2016

Borowski Race Engines, Inc.
We can offer Dart LS Next blocks in any stage of completion from "in-the-box" to a complete crate engine. Our LS Next builds have been featured on.....


Ad #182262560
POSTED: Thu, Aug 25 2016

LS Nexts in Stock - Immediate Shipment
The LS Next2 block displayed at PRI 2014 will soon be released. It features 2.75" Ford type main bearings for an even stronger bottom end. There are.....


Ad #182689587
POSTED: Thu, Aug 25 2016

For Big Boost, High HP Builds
Callies Dragonslayer and Magnum forged cranks are phenomenal pieces but any forged crank has its limits. The Ultra Billet cranks push those limits.....


Ad #182683469
POSTED: Thu, Aug 25 2016

SCAT Crank & Rods, Diamond R Series...
Part# BRE045294/5Above Added: Wed May 4, 2016, 11:02 am ESTThe Dart SHP LS Next is the newest in Dart's line of LS Next engines blocks. Building on.....


Ad #182499662
POSTED: Thu, Aug 25 2016

Polished (as shown) or Black
WHIPPLE SUPERCHARGER KIT for LS7 Borowski Race Engines, Inc. is a leader in cutting-edge engine builds using Whipple superchargers. Two such builds.....


Ad #182472805
POSTED: Thu, Aug 25 2016

Borowski Race Engines, Inc.
To see the entire line of Bullseye turbos, please visit our online store at Added: Thu.....


Ad #182317413
POSTED: Thu, Aug 25 2016

Featured in Engine Labs Magazine
Displayed at Scat booth PRI2014Above Added: Sat December 13, 2014, 3:39 am ESTENGINE LABS Nov 18, 2014.....


Ad #182500741
POSTED: Thu, Aug 25 2016

Borowski Race Engines, Inc.
Overview Designed for high performance and heavy duty applications, the SHP block is the ideal starting point for hot rodders, drag racers, circle.....


Go to Page:

(815) 725-2727
Borowski Race Engines, Inc.
1545 Mound Rd
Rockdale, IL 60436
Business Website
Send Message
Add to favorite businesses

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

Like us on Facebook

Follow us on Tumblr at:

View photos from previous projects at:
106 Main Street, North Adams, MA 01247
Toll Free: 866.326.9227 • Tel: 413.663.3496 • Fax: 413.663.3615 • Email:

Execution Stats: 0.177 sec / 7.0 MB used / 7.1 MB peak