Best LS 6.0 Supercharger Kit Options for Instant Power Up 2026
Answering the search for a high-performance boost, this guide highlights top LS 6.0 supercharger kits and compatible setups. These picks are best for hot-rodders seeking dramatic horsepower gains, stronger mid-range torque, and street-legal daily-drivable boost. The top products cover a range from bolt-on kits to upgrade paths for LS engines, including 4.8L, 5.3L, 6.0L, and 6.2L blocks. Below, you’ll find a quick buyer’s table and concise product insights to help you choose the right kit for your goals and installation capability.
Quick comparison table
| Product | Brand | Best For | |
|---|---|---|---|
| Complete 6-71 Roots Supercharger Kit | Speedmaster | Max horsepower boost on LS blocks | Full bolt-on kit with manifolds and pulleys |
| Chevrolet Performance 12622236 ZL1 Upgrade | Chevrolet | LSA/Camaro upgrade path | Intercooler upgrade option |
| Phase 2 ROUSH Upgrade Kit | Roush | Higher horsepower for 2011-2013 Mustangs | Includes induction and calibration |
| POSENG LS Intake Manifold with 102mm TB | POSENG | LS engine breathing and throttle response | Manifold with 102mm throttle body |
| BTR PDS Stage 2 Torque Camshaft | Michigan Motorsports | Valve-train and torque curve improvements | Best with supercharged LS builds |
Speedmaster Complete 6-71 Roots Kit for GM LS
This complete Roots-style kit is designed to bolt onto standard-deck LS blocks (LS1/LS2/LS3/LS6/LS7 and related displacements). It includes the blower, intake manifold, snout, 50T/55T Gilmer pulleys, belt, idler, and all gaskets. Best for: builders seeking a single, all-in-one kit to deliver substantial horsepower gains (estimated 45-55% boost) on compatible LS engines. A note: rotation assembly compatibility should be verified for sustained race use. Choose this if you want a turnkey setup with minimal missing parts.
Caution: Carb adapters and carbureted fuel components are sold separately, so plan for additional fuel system alignment if you’re running carbs. Better for street-legal builds that tolerate a traditional blower setup.
Chevrolet Performance ZL1 Supercharger Upgrade Kit
Designed for Camaro LSA engines and CTS-V applications, this upgrade focuses on a cover and intercooler enhancement to support higher boost potential. Best for: owners looking to upgrade an existing ZL1/LSA-based setup or those seeking improved cooling and sustained performance. Limitation: specific compatibility with certain models means you should verify fitment with your engine family before purchase.
ROUSH Phase 2 Upgrade Kit
The Phase 2 kit boosts power to about 625 horsepower and 525 lb-ft torque with a comprehensive upgrade including a larger 85mm supercharger pulley, upgraded FEAD belt, cold air induction, and a new PCM calibration. Best for: users upgrading from a 525/540/575hp ROUSH setup who want more peak torque and a refreshed intake path. Caution: This upgrade requires proper calibration and may require return-to-stock PCM handling with ROUSH for optimal results.
POSENG LS Intake Manifold Kit with 102mm TB
This sheet-metal intake manifold kit includes a 102mm throttle body, fuel rails, and compatible hardware for LS-based engines (4.8L to 6.2L). Best for: builders seeking improved airflow and throttle response when paired with a supercharger or as a performance upgrade. Limitation: Requires matching adapters to ensure compatibility with specific blower configurations and LS engine variants.
BTR PDS Stage 2 Torque Camshaft
The Brian Tooley PDS Stage 2 torque camshaft targets LS engines, including 5.7L, 6.0L, and 6.2L, especially those boosted by Magnuson, Whipple, or LSA superchargers. Best for: maximizing torque across the curve with improved stability and drivability. Limitation: This camshaft is intended for boosted builds; non-supercharged engines may underperform compared to stock cams.
Buying Guide
What should I consider before buying a supercharger kit for a 6.0 LS?
- Engine compatibility: Verify deck height, block family (LS1/LS2/LS3/LS6/LS7), and displacement to ensure the blower bolts up correctly.
- Boost level and fuel system: Higher horsepower goals require appropriate fuel delivery, a suitable ECU calibration, and potentially upgraded injectors or fuel rails.
- Cooling and induction: Intercooler options and cold-air induction paths impact peak power and driveability; consider upgrade paths if available.
- Calibration and sensors: Some upgrades require factory PCM re-tuning or vendor-specific calibrations to optimize timing and fueling.
- Installation scope: Bolt-on kits vary in complexity; verify whether professional installation is recommended for best results.
Why choose a supercharger kit for a GM LS 6.0?
Supercharger kits offer immediate throttle response and predictable, streetable power. Roots-style blowers deliver strong low- to mid-range torque, ideal for street driving and quarter-mile acceleration. When selecting, prioritize a kit with comprehensive hardware, support for your gas or carb setup, and a calibration plan that aligns with your goals and local regulations.
FAQ
- What is the typical horsepower gain from a 6-71 Roots kit on an LS engine? Response: Kits can aim for substantial gains (varies by setup and fuel system), commonly in the tens of percent range, with proper tuning and supporting hardware.
- Do I need a new fuel system for a bigger blower? Response: Upgraded fuel rails, injectors, and possibly a custom tune are often required to maintain safe air-fuel ratios at higher boost.
- Is an intercooler necessary with a supercharger? Response: An intercooler improves charge temps and reliability at higher boost but not all kits include one; verify with the specific kit.
- Can I install a kit on any LS block? Response: Not all LS blocks are identical; confirm bolt pattern, deck height, and accessories compatibility with your engine.
- Will I need a professional tune after installation? Response: Yes, a proper calibration is crucial to achieve safe performance and drivetrain reliability.
- Are there any common installation pitfalls? Response: Incorrect belt alignment, incorrect pulley sizing, or mismatched carb/fuel components can cause driveability issues or belt slip.