For the performance enthusiast, PPE offers the Stage4 transmission kit. It will ensure that your Allison 1000 transmission can handle up to 850 hp at the crank (approx 680 rwhp) and up to 1,500 ft. lbs. of torque without damage. This kit is designed to handle a Duramax engine that has been equipped with multiple high performance modifications, such as performance chips, oversize injectors, and/or small nitrous kits. This kit includes PPE's Triple Clutch Converter, Valve Body Recalibration Kit (recalibration kit does not change shift points, only increases clutch holding power), Converter Flow Valve and upgraded High-Friction C1, C2, C3 and C4 clutches with Kolene steels.
Triple Disc Converter
C1 includes: 14 1-sided internal spline frictions,1 bottom apply plate
C2 includes: 8 friction plates, 8 steel separator plates, 1 bottom apply plate
C3 includes: 5 friction plates, 4 steel separator plates
C4 includes: 6 friction plates, 5 steel separator plates
Valve Body Recalibration Kit, boost valve, pump shim and gaskets
Available for: LB7/LLY/LBZ/LMM Allison 1000 Transmissions