ACT Clutch Kits & Flywheels

ACT HD/Race Sprung 6 Pad Clutch Kit | Multiple Fitments

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HD/Race Sprung 6 Pad Clutch Kit by ACT

GM3-HDG6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency.

ACT's 6-pad, spring-centered race disc features a spring-center to properly damp torsional vibrations and resist failure under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 6-pad, spring-centered race disc, engagement is harsher, but shifting is faster. The 6-pad, spring-centered disc is recommended for larger clutch sizes to absorb more heat.


  • Product Weight (lbs.): 22
  • Torque Capacity (ft/lbs.): 805
  • Torque Capacity Over OE: 69%
  • Disc Material: Ceramic
  • Clutch Disc Diameter (Inches): 10.5
  • Clutch Disc Diameter (Millimeters): 266
  • Input Shaft Diameter (inches): 1.125
  • Pressure Plate Type: Heavy Duty


  • Light to moderate pedal effort
  • Aggressive engagement
  • OE to mild gear rattle
  • Moderate friction life
  • Uses select ceramic friction materials for high heat tolerance and maximum performance
  • 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability


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  • 1959-1975 Chevrolet Impala
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  • 1964-1973 Pontiac GTO
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