Description
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New INNOVATORS WEST 10% overdrive IW crank balancer kit for 09-13 Supercharged Corvette ZR1 6.2 LS9
SFI 18.1 Harmonic Damper kit 870 for GM 2009-13 ZR1 (LS9) Corvette – w/ Crank Bolt. 11 Rib & 10% Overdrive Pulley. it adds 2lbs of boost
Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.
INCLUDES :
IW balancer assembly 870
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