Borowski Race Engines
0
  • Log in
  • Create an account
  • Check out
  • Home
  • Engine Packages
    • LS Street Engines
    • LS Race Engines
    • Small Block Chevy Street
    • Big Block Chevy Street
    • Big Block Chevy Race
  • Press
  • BRE Blogs
  • Store
  • Contact
  • Home
  • All Products
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
  • 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road 1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road
1,270 HP, Rear-Feed Whipple Supercharged LS - Airboats & Off-Road

Type: Engine Packages
Vendor: Borowski Race Engines

Description:

PHOTOS & VIDEO SHOW OPTIONAL POLISHED FINISH and VARIOUS 4.5L WHIPPLE SUPERCHARGER MODELS in ON & OFF-ROAD CONFIGURATIONS

Off-roading and watersports come in a lot a flavors, but there are common themes of quality, durability and power for the engines.  

  • they need to be able to operate in difficult environments,
  • withstand a serious beating time after time,
  • generate lots of torque at low rpm to get those props spinning or big tires kicking up dirt, mud and sand.

Whipple superchargers excel in this environment. We pair them with our super-stout LS engines and electronics that will survive the challenges of off-road and marine environments.  The 4.5L supercharger is the largest and most capable offered by Whipple for the LS platform. They have come in various configurations over the years but all delivered similar performance. The rear air inlet of this supercharger allows the engine to bring in air from a more protected area.  We would mount earlier front-feed models backwards to achieve that effect.

The LS engine is a great platform as it offers exceptional value as measured by $/hp. It is compact, reliable, durable and can handle a lot of power.  There is also great aftermarket support. We build ours to last by using parts we know can handle a lot of power that we source from top-quality supplers like these:

  • Dart Machinery: LS Next SHP iron block upgraded with P1 Manufacturing main studs 
  • Callies Performance: Apex 8-counterweighted crankshaft and Ultra Enforcer rods both made from high-grade Timken steel alloys
  • Diamond Pistons: custom pistons with premium rings and H-13 tool steel wrist pins
  • COMP Cams: custom ground hydraulic roller camshaft and BSR shaft rockers
  • All Pro Cylinder Heads: Borowski CNC ported LS7 heads assembled with Manley valves and springs

The custom black anodized serpentine comes with a 225 amp alternator, remote PS reservoir, OE diameter ATI balancer with10-rib belt and billet bracketry.

This 427 cubic inch engine and 4.5L Whipple supercharger combination generates more than 1,000 lb-ft of torque across the rpm band from 3,600 - 6,600 rpm, and does it on pump gas. Its hydraulic roller design means you won't need to be adjusting valve lash.

The included FuelTech 550 engine management system with integrated display comes preloaded with the tune from your dyno session.  These units are waterproof (IP67) and feature a robust wiring harness to handle challenging evironments.

The precision and craftsmanship of your engine build is every bit as important as the parts. Our shop features state-of-the-art CNC machinery and have invested heavily in training (see video below). We were named Race Engine Builder of the Year by Engine Builder Magazine in recognition of our capbilities and achievements. Our quality and value proposition have allowed us to sell engines like this worldwide.

Check out the video below to see one of these in action on the water.

 

Here's one that's now rock crawling in Guam:

Here's an on-road one on our dyno

Call us at 815-725-2727 for answers to any questions you might have or to place your order.  We have lots of other options available for off-road and marine applications.

Payment Types Accepted: Wire transfer, ACH, cleared check 

FuelTech Demo

Shop Video

Other fine products

  • $ 1,442,643.00
    3,000 HP, 427ci T...
    View
  • $ 1,363,274.00
    3,000 HP, 427ci T...
    View
  • $ 1,330,593.00
    2,500 HP, 427ci S...
    View

Product Types

  • Connecting Rod
  • Crankshafts
  • Cylinder Heads
  • Electronics
  • Engine Block
  • Engine Packages
  • Exhaust
  • Fuel Delivery
  • Fuel Injection
  • Garage Sale
  • Intake Manifolds
  • Intercooling
  • Motor Oil
  • Oiling System
  • Pistons
  • Power Adders
  • Rotating Assemblies
  • Serpentines
  • Throttle Body
  • Transmission
  • Valvetrain
  • View More View Less

Product Vendors

  • Aeromotive
  • Airflow Research
  • All Pro Cylinder Heads
  • ARP
  • Borowski Race Engines
  • Brodix
  • BullsEye Power
  • Callies
  • CID
  • Comp Cams
  • Dailey Engineering
  • Dart
  • Daytona Sensor
  • Diamond Pistons
  • Emtron
  • Energy Mfg
  • FAST
  • FuelTech
  • GM
  • Holley
  • Hooker Headers
  • Hughes Performance
  • Manley
  • Manton Pushrods
  • Maxima Racing Oils
  • Melling
  • Moroso
  • MSD Ignition
  • ProCharger
  • RacePak
  • RHS
  • Stef's Performance
  • Trend
  • Whipple
  • View More View Less

Best Sellers

Main Menu

  • Home
  • Engine Packages
  • Press
  • BRE Blogs

Our Products

  • All Products

About Borowski

  • About Us
  • Press
  • Warranty
  • Contact us

News

  • Head Stud Options...
  • Twin Screw Superc...
  • LS or Big Block f...
  • Dry Sump Oiling S...

© 2025 Borowski Race Engines. All Rights Reserved. POS and Ecommerce by Shopify.

Product Added to Cart