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Speedmaster 4340 Billet Steel crankshafts are manufactured from high quality true billet round bar stock
Stay on track with Speedmaster 9 in
They are heat-treated and stress-relieved before any of the CNC machine work is done
A new transmission filter along with a fluid change can extend the life of a transmission
TH400 Turbo 400 Transmission Billet Aluminum Direct Drum, Piston, XLarge Sprag Speedmaster 4340 Billet Steel crankshaftsThis TH400 Billet Aluminum Direct Drum is manufactured specifically for drag racing classes including Pro Street, Pro Mod and Top Sportsman. Made from 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. The drum and piston weight 55% less than the OEM spec drums. 1 4" locking dowels have been inserted to stop inner race movement along with a Steel sleeve for
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