Key Features:
Substantial Power Gains: Boost your engine’s horsepower by 45-55%, delivering exceptional performance for street and competition applications.
High-Quality Supercharger Design: Features a polished aluminum case with precision-engineered, double-pinned 3-lobe rotors, timed and clearanced for optimal performance and reliability.
Comprehensive Installation Package: Includes all necessary components for a seamless installation, ensuring a hassle-free setup.
Customizable Drive Ratios: Compatible with additional pulley options to fine-tune underdrive or overdrive, allowing versatility for different driving styles or applications.
What's Included:
Supercharger Unit
- Polished 6-71 Roots-Style Blower
Intake System
- Aluminum Supercharger Intake Manifold
- Dual 4-Barrel Carburetor Adapter Plate
Drive Components
- Supercharger Snout with Coupler
- Upper and Lower Supercharger Drive Pulleys (50T and 55T)
- 3” Gilmer-Style Drive Belt
- Idler Pulley with Bracket Assembly
Sealing and Hardware
- Supercharger to Intake Manifold Gasket
- Carburetor Plate Gasket with Screen Mesh
- Breakaway Stud Kit
Alignment and Fitment Components
- May include additional alignment or fitment hardware depending on the specific kit configuration.
Built for Reliability:
Every Speedmaster 6-71 supercharger is crafted with robust materials and precision engineering to withstand demanding conditions. Designed for long-term use, the heavy-duty bearing plates and efficient rotor design ensure consistent performance.

