The General Motors 3800 V6 engine, known for its iron-block durability and surprisingly stout bottom end, has been a favorite platform for budget-conscious power seekers for decades. Factory-rated at around 200 horsepower in naturally aspirated form, the 3800 responds exceptionally well to forced induction. Adding a supercharger can reliably push output to the 300–350 horsepower range, transforming a daily driver into a genuine sleeper. Below, we break down the top five supercharger kits for the 3800 engine, covering their real-world power gains, installation complexity, and long-term reliability.

1. Edelbrock E-Force Supercharger Kit

Edelbrock’s E-Force system is the gold standard for bolt-on supercharging on the 3800. It uses a twin-screw rotor assembly that delivers instant throttle response and a broad torque curve. The kit is engineered as a direct-fit upgrade, meaning you won’t need to relocate accessories or modify the hood on most GM W-body cars (Grand Prix, Regal, Monte Carlo).

Key Specifications

  • Power Increase: 150 hp over stock – reaching the 350 hp mark with proper tuning.
  • Boost Pressure: 8–9 psi out of the box; can be raised with a smaller pulley.
  • Included Components: Cast aluminum intake manifold, intercooler brick, injectors, and a high-flow fuel pump.
  • Warranty: 3-year/36,000-mile limited warranty.

Installation Notes

The E-Force kit is designed to be installed with basic hand tools in a weekend. The instructions are thorough, and the included ECU calibration (via a handheld programmer) makes it plug-and-play. Professional tuning is recommended if you upgrade the pulley or add supporting mods.

Why It Stands Out

Edelbrock’s reputation for quality and the kit’s CARB EO number (legal in all 50 states) make it the safest choice for street-driven cars. The integrated intercooler keeps intake air temperatures low, reducing the risk of detonation even under sustained hard driving. Official Edelbrock product page.

2. Magnuson Supercharger Kit

Magnuson has been a leader in positive-displacement superchargers for decades. Their 3800 kit uses a TVS (Twin Vortices Series) rotor pack, known for superior thermal efficiency and quiet operation. This kit targets a more conservative power gain, emphasizing daily driveability and durability.

Key Specifications

  • Power Increase: Up to 100 hp (300 hp total) with the standard tune.
  • Boost Pressure: 7 psi, internal bypass ensures minimal parasitic loss at cruise.
  • Included Components: TVS supercharger, cast intake manifold, intercooler, and injectors.
  • Warranty: 3-year limited warranty.

Installation Notes

The Magnuson kit comes with comprehensive instructions and a pre-configured ECU flash. Installation is similar to the Edelbrock – require no cutting or welding. The kit is compatible with both Series II and Series III 3800 engines with minor bracket differences.

Why It Stands Out

Magnuson’s rotor coating extends supercharger life, and the lower boost level means you can run on pump gas without concern. The intercooler core is larger than some competitors, providing excellent heat rejection during repeated pulls. Magnuson product details.

3. Whipple Supercharger Kit

Whipple Industries is synonymous with high-horsepower supercharging. Their twin-screw design offers the highest potential power ceiling of any kit on this list. The 3800 version is often chosen by drag racers and owners who plan to build the engine further.

Key Specifications

  • Power Increase: Up to 350 hp with proper supporting upgrades.
  • Boost Pressure: 10–12 psi (smaller pulley included).
  • Included Components: Whipple W140AX supercharger, intercooler, high-flow injectors, and belt.
  • Warranty: Limited lifetime warranty on the supercharger case and rotors.

Installation Notes

This kit requires more mechanical skill. The manifold may need slight clearance work on some vehicles, and the fuel system must be upgraded to deliver enough flow. Professional installation is strongly advised. Whipple provides a base tune, but a custom dyno tune is essential to realize the full potential.

Why It Stands Out

The Whipple’s design creates less parasitic loss than roots-style blowers, allowing higher rpm efficiency. The limited lifetime warranty is a testament to the build quality. Owners who want a 350 hp street/strip car often pair this kit with upgraded camshafts and valvetrain components. Whipple official site.

4. ZZPerformance Supercharger Kit

ZZPerformance is an aftermarket specialist focused exclusively on the GM 3800 platform. Their supercharger kit is the most budget-friendly option while still delivering meaningful gains. It’s designed for the enthusiast who wants to boost power without spending over $3,000.

Key Specifications

  • Power Increase: 80–100 hp (280 hp total) depending on tune.
  • Boost Pressure: 6–7 psi.
  • Included Components: Rebuilt Eaton M90 supercharger, intake manifold, injectors, and belt.
  • Warranty: 1-year limited warranty.

Installation Notes

This kit uses a remanufactured supercharger core (often from an L67 engine). It’s relatively simple to install with standard automotive tools. A custom tune is required – ZZPerformance offers remote tuning via PCM flash.

Why It Stands Out

The price point makes it an excellent entry-level supercharger kit. The M90 design is proven and well-supported by the community. Many owners start with this kit and later upgrade to a larger throttle body or intercooler. ZZPerformance product listing.

5. Intense Racing Supercharger Kit

Intense Racing has a loyal following in the 3800 community for their reliable, race-oriented parts. Their supercharger kit combines a ported M112 supercharger with a custom intercooler and plumbing. It’s aimed at enthusiasts who want 300+ horsepower without sacrificing engine longevity.

Key Specifications

  • Power Increase: 120 hp (320 hp total) with street tune.
  • Boost Pressure: 9 psi with standard pulley.
  • Included Components: Ported M112 supercharger, intercooler core, fuel injectors, and belt.
  • Warranty: 2-year limited warranty on new components.

Installation Notes

This kit requires some fabrication skills. The M112 is a larger blower than the M90, so the intake manifold may need porting. Detailed instructions are provided, but a weekend mechanic should expect a 2-day install. A tune is mandatory; Intense offers baseline files for popular platforms.

Why It Stands Out

The ported M112 flows significantly more air than stock, giving headroom for future mods. The intercooler is designed to drop charge air temperatures by 30–50°F, reducing knock tendency. This kit is often used in high-mileage engines that are still in good condition. Intense Racing product page.

Installation Tips for 3800 Supercharger Kits

Proper installation is critical to reliability and performance. Here are key considerations:

  • Fuel System: Every kit mentioned requires upgraded fuel injectors (usually 36 lb/hr to 60 lb/hr). Some also include a high-flow fuel pump. Verify your fuel pump can deliver enough volume – stock pumps often fail at 350 hp.
  • Cooling: Supercharging increases engine operating temperatures. Upgrade to a 180°F thermostat, consider an auxiliary transmission cooler, and ensure the radiator is clean.
  • Tuning: Never skip a professional dyno tune, even with base calibrations. The 3800’s PCM has knock sensors that can pull timing aggressively if the tune is too aggressive.
  • Exhaust: A high-flow downpipe and cat-back exhaust will reduce backpressure and help the supercharger breathe. Stock exhaust is a restriction above 300 hp.

Tuning Requirements and Supporting Mods

All 3800 supercharger kits benefit from a custom tune. While some kits come with a handheld programmer, the supplied tunes are conservative to cover all vehicle conditions. A custom tune tailored to your fuel, altitude, and driving style will maximize power and safety. Popular tuning platforms include HPTuners and EFILive. Supporting mods to consider:

  • Larger intercooler or charge air cooler for sustained performance.
  • Upgraded lower intake manifold runners (ported or aftermarket).
  • 1.9:1 or 1.8:1 roller rocker arms to increase valve lift.
  • High-volume fuel rail and adjustable fuel pressure regulator.
  • Cold air intake with a heat shield – but avoid open-element intakes that pull underhood hot air.

Cost Considerations

Prices vary widely based on brand and included components. Edelbrock and Magnuson kits range from $3,500 to $4,500. Whipple is typically $4,000–$5,000. ZZPerformance is the budget option at under $2,500, while Intense Racing falls around $3,000. Remember to budget for installation (if not DIY), tuning ($300–$600), and supporting parts (fuel pump, thermostat, gaskets). A complete build including the kit, fuel upgrades, and tune typically costs $4,000 to $6,500.

Reliability and Longevity

The 3800 engine is robust, but supercharging increases stress. Using a high-quality intercooled kit and conservative boost levels (8–10 psi) will keep the engine happy for many miles. Frequent oil changes (3,000–5,000 miles) with synthetic oil, premium fuel (91+ octane), and monitoring of knock retard are essential. Many owners report 100,000+ miles on supercharged 3800s with no major issues when properly maintained.

Final Takeaway

Choosing between these five kits depends on your power goal, budget, and mechanical comfort level. Edelbrock leads in ease of use and warranty support. Magnuson offers quiet, dependable street performance. Whipple is for the max-power enthusiast. ZZPerformance is the entry point for a budget build. Intense Racing fills the gap between affordability and race-ready hardware. Regardless of your choice, a supercharged 3800 delivers a grin-inducing torque surge that transforms an ordinary sedan or coupe into a potent performer.