Roush 705HP Supercharger Kit (422240) - 2021-2026 F-150 5.0L V8
Take your 2021-2026 Ford F-150 5.0L V8 to the next level with the Roush 705HP Supercharger Kit. Featuring the advanced Roush TVS R2650 2.65L supercharger system, this complete performance package is engineered to deliver massive horsepower, instant throttle response, and dependable forced-induction performance for street, towing, and high-performance truck applications.
With output increased to 705 horsepower and 635 lb-ft of torque, this Roush supercharger system adds serious power while maintaining factory drive modes and OEM-style drivability. The roots-type R2650 TVS supercharger uses twin four-lobe rotors with a 170-degree twist for improved airflow, thermal efficiency, reduced vibration, and smooth power delivery across the entire RPM range.
Roush designed this kit with durability and cooling performance in mind. A 107 percent larger low-temp radiator doubles cooling capacity compared to previous systems, while the Roush-exclusive forged aluminum viscous crankshaft damper helps manage the increased torsional demands of forced induction. Specialized spark plugs and a premium Roush calibration further support reliable performance on 93 octane fuel, with 91 octane compatibility.
Features
- Fits 2021-2026 Ford F-150 5.0L V8 models
- Delivers up to 705 horsepower and 635 lb-ft of torque
- Adds 305 horsepower at the crank over the base model
- Roush TVS R2650 2.65L supercharger system
- Twin four-lobe rotors with 170-degree twist
- Instant throttle response across the power band
- 107 percent larger low-temp radiator for improved cooling
- Roush-exclusive forged aluminum viscous crankshaft damper
- Special forced-induction spark plugs help reduce pre-ignition risk
- Maintains factory drive modes
- Calibration downloadable through Roush RDT software
- Complete kit includes required installation hardware
- 3-year/36,000-mile limited powertrain warranty when installed by a certified ASE technician
Performance
- Rated Output: 705 HP
- Rated Torque: 635 lb-ft
- Dyno Results: 564 RWHP and 508 RWTQ based on 20 percent parasitic loss
- Recommended Fuel: 93 octane
- Compatible Fuel: 91 octane
- Supercharger Type: Roush TVS R2650 roots-type
- Displacement: 2.65L
Fitment
- 2021 Ford F-150 5.0L V8
- 2022 Ford F-150 5.0L V8
- 2023 Ford F-150 5.0L V8
- 2024 Ford F-150 5.0L V8
- 2025 Ford F-150 5.0L V8
- 2026 Ford F-150 5.0L V8
California Compliance
- 2021, 2022, and 2023 model years are approved for sale and installation in California and other states requiring an EO number.
- California EO Number: D-418-47.
- 2024, 2025, and 2026 model year California compliance was not listed in the provided manufacturer information.
Additional Notes
- Vehicle maximum speed is not modified from the production configuration with installation of this kit.
- F-150 models equipped with Pro Power Onboard require Roush Dual Alternator Supplemental Kit 422310.
- Power figures are based on optimal conditions using 93-octane fuel.
- Actual results may vary depending on fuel octane, intake air temperature, humidity, manifold charge temperature, gearing, wheel and tire combination, and dynamometer type.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
