A customer brought their Chevy Avalanche to Level 7 Motorsports for some powertrain upgrades. The company started by installing a 402 ci LSx V8 from Texas Speed & Performance (TSP) with a ProCharger supercharger. The motor features an aluminum LS2 block, forged crank, Wiseco pistons, TSP rods, 114 LSA camshaft, and Precision Race Components 225cc/68cc heads. The motor produces 482 horsepower to the wheels on 8 psi of boost and fed by two 340 lph fuel pump with -8 lines. They also upgraded the 4WD drivertrain with a RPM Level 5 4L80E four-speed automatic and Circle D triple-disc converter.
Source: Level 7 Motorsports (project page)
I’m looking to do something similar to my 07 Avalanche