
Twisted Pro™ 8L90 Performance Transmission – Up to 550 HP
The Twisted Pro™ 8L90 is designed for enthusiasts who demand more than a stock rebuild. Rated for applications producing up to 550 horsepower, this transmission is ideal for cammed engines, tuned trucks, performance street cars, and LS/LT swaps.
Every transmission is completely disassembled, inspected, and rebuilt with proven internal upgrades to improve clutch holding power, hydraulic control, and long-term reliability.
✔ Cammed LS & LT engines
✔ Tuned Silverado & Sierra trucks
✔ Camaro SS & Corvette C7
✔ Performance daily drivers
✔ Street / Strip applications
✔ LS & LT engine swaps up to 550 HP
✔ Increased High-Energy Clutch Capacity
✔ Twisted Torque™ Performance Clutches & Steels
✔ Pump Reconditioned & Updated
✔ Valve Body Completely Rebuilt & Hydraulic Updates Performed
✔ Pressure Regulator & Hydraulic Circuit Improvements
✔ Improved Converter Clutch Control
✔ New Molded Apply Pistons
✔ New Bushings, Bearings, Seals & Filter
✔ Internal Hard Parts Inspected & Replaced As Required
✔ Shift Solenoids, Pressure Control Solenoids, Speed Sensors & Internal Wiring Inspected and Replaced As Needed
Every Twisted Pro™ transmission includes a matched performance torque converter featuring:
✔ Upgraded Lockup Clutch
✔ Improved Damper Assembly
✔ Increased Torque Capacity
✔ Reduced Converter Clutch Shudder
✔ Matched to Your Vehicle & Performance Level
The 8L90 uses an external T87/T87A Transmission Control Module.
✔ Factory TCM is reused
✔ No internal TEHCM
✔ No TCM included
Performance applications, camshafts, engine swaps, and converter changes require proper tuning for correct shift timing and converter operation.
Available in both Start/Stop and Non-Start/Stop configurations.
Please verify your vehicle before ordering to ensure the correct transmission is supplied.
Chevrolet: Silverado, Tahoe, Suburban, Camaro SS, Corvette C7
GMC: Sierra, Yukon
Cadillac: Escalade, CTS-V
Compatible with many LS & LT engine swap applications using the proper controller.
✔ Increased clutch capacity over our Twisted Street™ Series
✔ Improved hydraulic control and clutch holding power
✔ Built for higher horsepower and towing demands
✔ Firm, positive shifts with excellent street manners
✔ Professionally built by experienced transmission builders
Proper tuning is required for modified and performance applications. Incorrect calibration, insufficient cooling, or improper installation can result in transmission damage and is not covered under warranty.