Viper Big Block Unassembled 4-Disk Clutch Kit - 1.0" Bore - Outlaw / ModifiedTransferring massive torque from a big block engine to the track demands a driveline engineered for absolute dominance, making this unassembled Viper clutch a mandatory upgrade when sourcing new kart parts for high horsepower builds. Designed around a robust 1. 0" bore and a heavy duty steel turbo pattern drum, this 4 disk, 6 spring clutch kit ensures zero slip under extreme loads. By assembling the components yourself, you unlock the ability to