Whipple 2.3L W140AX Rear Feed Hot Rod Supercharger Kit (WK-1800) - Chevy / GM LS Engines
Bring proven Whipple twin-screw performance to your custom LS-powered build with the Whipple 2.3L W140AX Rear Feed Hot Rod Supercharger Kit. Designed for LS1, LS2, LS3, LS6, LS7, and other LS-based custom applications, this universal supercharger package gives builders a powerful foundation for hot rods, engine swaps, race cars, and custom fabrication projects.
Whipple has been developing twin-screw supercharger technology since 1987, and the W140AX combines that experience with a compact 2.3L positive-displacement design. Its rear feed configuration promotes efficient airflow and excellent throttle response, while an integrated air-to-water intercooler helps control intake air temperatures for consistent performance during extended pulls and demanding operating conditions.
Features
- Whipple W140AX 2.3L twin-screw supercharger
- Rear feed supercharger configuration
- Positive-displacement twin-screw design
- Integrated air-to-water intercooler system
- Designed to help maintain lower intake air temperatures and consistent power
- High-flow cast aluminum intake manifold
- Billet fuel rails
- Optimized for LS1, LS2, LS3, LS6, LS7, and other LS-based engine builds
- Ideal for hot rods, LS swaps, race cars, and custom fabrication projects
- Provides flexibility for custom fueling, cooling, belt drive, and tuning configurations
- Mounting hardware included
Whipple W140AX 2.3L Twin-Screw Supercharger
At the heart of the WK-1800 system is Whipple's W140AX 2.3L twin-screw supercharger. The positive-displacement design provides immediate airflow and excellent throttle response, making it well suited for LS-powered builds that demand responsive power delivery. The rear feed layout provides an efficient airflow path while supporting the packaging requirements of custom hot rod and LS swap applications.
Integrated Air-to-Water Intercooling
An integrated air-to-water intercooler helps reduce the temperature of the compressed intake charge before it enters the engine. Controlling intake air temperatures is especially important in forced-induction applications, helping the system deliver more consistent performance during extended pulls and demanding conditions.
Designed for Custom LS Builds
Unlike a complete vehicle-specific supercharger system, this universal LSX hot rod kit is intended to provide builders and fabricators with the essential Whipple components while leaving supporting systems open for the specific requirements of the project. This gives builders flexibility when selecting injectors, heat exchangers, pumps, coolant plumbing, belt drive components, and calibration strategies.
The WK-1800 is an excellent starting point for street-style hot rod projects intended for permitted competition use, dedicated race builds, custom LS swaps, and other fabricated LS-powered applications where a vehicle-specific bolt-on supercharger system is not appropriate.
What's Included
- 2.3L Whipple W140AX rear feed twin-screw supercharger
- Integrated air-to-water intercooler system
- High-flow cast aluminum intake manifold
- Billet fuel rails
- Mounting hardware
Additional Components Required
This is a universal hot rod supercharger kit and does not include all components necessary to complete a running forced-induction system. The builder or installer is responsible for selecting the appropriate supporting components for the specific application.
- Heat exchanger not included
- Fuel injectors not included
- Tuning and calibration components not included
- Belt system not included
- Coolant plumbing not included
- Additional application-specific fabrication and supporting components may be required
Engine Applications
- GM LS1
- GM LS2
- GM LS3
- GM LS6
- GM LS7
- Other compatible LS-based custom engine builds
Fitment
This Whipple W140AX 2.3L Rear Feed Supercharger Kit is designed for hot rod, racing, LS swap, and custom LSX applications. Because this is a universal builder-oriented system rather than a complete vehicle-specific bolt-on kit, compatibility and the supporting components required for installation must be determined for the individual engine and vehicle configuration.
Competition Use and Legal Notice
THIS PRODUCT MAY BE USED SOLELY ON VEHICLES USED IN SANCTIONED COMPETITION WHICH MAY NEVER BE USED UPON A PUBLIC ROAD OR HIGHWAY.
LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY.
It is the responsibility of the installer and/or user of this product to ensure that it is used in compliance with all applicable laws and regulations.
This policy applies to installers and/or users located in the United States. Customers in other countries should follow their local laws and regulations.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

