Paxton NOVI 1500 Supercharger System - PowerHat & Discharge - Polished (Big Block Mopar Carbureted) 1201860-P
Polished NOVI 1500 Complete Supercharger System for Carbureted Big Block Mopar 440 RB
The Paxton NOVI 1500 Supercharger System (PN 1201860-P) is a universal, carbureted centrifugal supercharger package engineered for Big Block Mopar 440 RB engines. This polished complete system includes the required PowerHat (carburetor bonnet) and discharge components, delivering a well-matched, bolt-on solution for builders seeking reliable boost with classic big block Mopar style.
With the supplied pulley ratio, the NOVI 1500 produces approximately 5-6 PSI at 6,000 RPM on a lightly modified 440 cubic-inch engine. Depending on boost level, engine volumetric efficiency, and supporting components, typical horsepower gains fall in the 30-75%+ range, making this system an excellent foundation for aggressive street or strip Mopar builds.
Key Features & Performance Highlights
- Paxton NOVI 1500 centrifugal supercharger
- Clockwise rotation with curved discharge configuration
- Produces approximately 5-6 PSI @ 6,000 RPM on a lightly modified 440ci engine
- Typical horsepower gains of 30-75%+ depending on configuration
- Complete system including PowerHat and discharge components
- High-quality polished finish for a show-ready big block Mopar engine bay
- Designed to align with OEM Dodge twin V-groove accessory crank pulleys
Included Components
- NOVI 1500 supercharger (clockwise rotation, curved discharge) with 3.47-inch, 10-rib pulley
- Twin billet aluminum mounting plates with all required hardware
- Integrated manual belt tensioner with dual-bearing billet aluminum idler
- OEM alternator mounting provisions
- Supercharger drive assembly, including:
- 7.00-inch hard-anodized billet aluminum crank pulley
- 10-rib drive belt, spacer, and all necessary hardware
- Supercharger oil feed assembly
- Supercharger oil drain assembly
- 4-inch aluminum inlet ducting with silicone sleeves, stainless clamps, and cone-style high-flow air filter
- 3.5-inch aluminum discharge tube with silicone sleeves and stainless clamps
- Aluminum race bypass valve with tube and mounting flange
Note: bypass valve installation requires welding in installer-specified location - Cast aluminum carburetor hat / PowerHat (bonnet)
Requires a properly prepared 4150 Holley or Demon carburetor modified for blow-through use
Fuel System & Carburetor Requirements
- Requires a properly prepared 4150-style carburetor with mechanical secondaries
- Demon carburetors may be used with appropriate preparation
- High-volume, boost-referenced fuel pump and regulator required (not included)
- Carburetor re-jetting or minor modification may be required
Installation Notes
- Designed for use with OEM Dodge twin V-groove accessory crank pulley
- Vehicle throttle cable or linkage modifications may be required
- Replacement hood or hood modifications may be required depending on intake and PowerHat configuration
- Accessory V-belts vary by application and pulley configuration
- Estimated installation time: 4-10 hours, depending on application
Optional Components & Common Upgrades
- Boost-referenced fuel pressure regulator
- Alternate supercharger and crank pulleys for custom boost levels
- Compressor bypass valves for higher boost applications
- Aftermarket ignition amplifier (recommended)
- MSD 6AL-BTM ignition amplifier with timing retard (PN 5A101-014)
Quick Specs
- Manufacturer: Paxton Superchargers
- Part Number: 1201860-P
- Supercharger: NOVI 1500
- Rotation: Clockwise
- Discharge: Curved
- Kit Type: Complete Supercharger System
- Finish: Polished
- Boost Output: 5-6 PSI @ 6,000 RPM (440ci reference engine)
- Estimated Power Gain: 30-75%+
Emissions & Legal Notice
- NOT 50-state smog legal
- Intended for off-road and race-use-only vehicles
- Horsepower and torque figures are calculated estimates based on percentage increases
- Specifications are subject to change
FAQs
- What's included in this complete system versus a tuner kit?
This system includes the PowerHat (carburetor bonnet) and an aluminum race bypass valve, which are not included with the 1201860-1 or 1201860-1P tuner kits. - Is a fuel system included?
No. A high-volume, boost-referenced fuel pump and regulator are required and must be supplied separately.
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized Paxton Superchargers dealer with extensive experience supporting carbureted big block Mopar builds. From fuel system guidance to pulley selection, our team helps ensure your NOVI 1500 system is configured correctly and performs exactly as intended.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

