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- Superchargers
Product Description

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.

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
Accessory Drive Components
- V-Belt Accessory Drive Pulley
Alignment and Fitment Components
- May include additional alignment or fitment hardware depending on the specific kit configuration.
Key Features
- Boosts horsepower by 45–55% for street or racing use
- Complete kit with supercharger, intake, and drive parts
- Polished 6-71 Roots-style blower for a show-ready finish
- Precision 3-lobe rotors ensure smooth, reliable boost
- Includes dual carb adapter plate for performance setups
- Adjustable pulley options for tuning boost levels
- Heavy-duty components built for long-term durability
- V-belt accessory drive pulley included in the kit
Complete 6-71 Roots Supercharger Blower Kit

Comprehensive Installation Package
Includes all necessary components for a seamless installation, ensuring a hassle-free setup.
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
Technical Specifications
Part Type | Supercharger, Roots Style Kit |
Product Line | Complete Blower Kits |
Intake Included | Yes |
Supercharger Brand | Speedmaster |
Supercharger Model | 6-71 |
Supercharger Finish | Polished |
Supercharger Pulleys Included | Yes |
Pulley Teeth Count | 50/55 |
Supercharger Lobe Qty | Three |
Pulley Style | Gilmer |
Dampner Included | No |
Belt Tensioner Included | Yes |
Belt Included | Yes |
Crankshaft Pulley Grooves | Dual |
Carburetor Quantity | Two |
Linkage Included | No |
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