GM TH400 Heavy Duty Racing Transmission Billet Aluminum Direct Drum loosening the converter and helping

loosening the converter and helping spool the turbo quickly

please note that some modification to your stock fuel line may be necessary to adapt to our fuel rail system

Speedmaster brake boosters are the perfect addition to your street rod or custom application

You've spent thousands of dollars putting together an engine compartment worthy of attention

This Speedmaster design features tubes instead of discharge nozzles that provide a more consistent fuel flow

GM TH400 Heavy Duty Racing Transmission Billet Aluminum Direct Drum loosening the converter and helpingThis TH400 Billet Aluminum Direct Drum is manufactured specifically for drag racing but also makes a great replacement for the hard to find OEM parts. Drum weights 55% less than the OEM drum. Made from 7075 T6 Billet Aluminum, 36 element Pro Mod Sprag and new large steel outer race to allow the use of more clutches. Used in applications up to 3000 HP.