ACT GM9-HDG6 Heavy Duty/Race Sprung 6-Pad Clutch Kit for Chevrolet Corvette

GM9-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. HD/Race Sprung 6 Pad Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle; Moderate friction life, extended by ACT's exclusive diaphragm design; Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance; Recommended for high horsepower street or race use; 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

• "Excellence in Performance", backed by the best one-year warranty in the industry!

The ACT GM9-HDG6 Heavy Duty/Race Sprung 6-Pad Clutch Kit is engineered for high-performance street and race applications requiring increased clamp load, rapid shifting, and dependable operation under demanding conditions. This automotive clutch kit combines ACT’s Heavy Duty pressure plate with a spring-centered 6-pad race disc designed to handle elevated heat and power levels.

The ACT Heavy Duty pressure plate uses an exclusive diaphragm design to increase clamp load, reduce deflection, and help maximize clutch life. Each diaphragm undergoes a four-stage heat-treating process for consistent performance, while precision cover stampings improve rigidity and assembly consistency. The pressure plate is 100% clamp-load tested and dynamically computer balanced for smooth, reliable operation at high RPM.

The spring-centered 6-pad race disc uses select ceramic friction materials for high heat tolerance and aggressive power transfer. Reinforced spring retainers with wraparound spring windows help support the springs, reduce stress concentrations, and improve reliability under harsh conditions. Engagement is more aggressive than an organic street disc, but the design supports faster shifting and strong resistance to failure. Pedal effort remains light to moderate, with OE to mild gear rattle possible depending on the vehicle and drivetrain. The ACT GM9-HDG6 is recommended for high-horsepower street or race use and is backed by ACT’s industry-leading one-year warranty.

Key Product Specifications & Technical Data:

• Brand: ACT
• Part Number: GM9-HDG6
• Product Type: Heavy Duty/Race clutch kit
• Disc Design: Spring-centered 6-pad race disc
• Pressure Plate: Heavy Duty diaphragm design
• Friction Material: Select ceramic compound
• Balancing: Dynamically computer balanced
• Application: High-performance street and race use

Fitment: Designed for select 2005–2012 Chevrolet Corvette applications. Verify vehicle year, engine, transmission, and existing clutch specifications before ordering.

What’s Included: Heavy Duty pressure plate, spring-centered 6-pad race disc, and clutch kit components supplied by ACT for the GM9-HDG6 application.

• Excellence in Performance, backed by ACT’s best one-year warranty in the industry!

Features:

• Heavy Duty Diaphragm Pressure Plate: Increases clamp load, reduces deflection, and helps maximize clutch service life.
• Spring-Centered 6-Pad Race Disc: Provides aggressive engagement, faster shifting, and improved torsional vibration control.
• High-Temperature Ceramic Friction Material: Supports high heat tolerance and reliable power transfer in demanding street or race conditions.
• Precision Tested and Balanced: Each assembly is clamp-load tested and dynamically computer balanced for smooth high-RPM reliability.

Fitments:
1997 Chevrolet Corvette Base
1998 Chevrolet Camaro Z28
1998 Chevrolet Camaro Z28 SS
1998 Chevrolet Corvette Base
1998 Chevrolet Corvette Indianapolis 500 Pace Car
1998 Pontiac Firebird Formula
1998 Pontiac Firebird Trans Am
1999 Chevrolet Camaro Z28
1999 Chevrolet Camaro Z28 SS
1999 Chevrolet Corvette Base
1999 Pontiac Firebird Formula
1999 Pontiac Firebird Trans Am
2000 Chevrolet Camaro Z28
2000 Chevrolet Camaro Z28 SS
2000 Chevrolet Corvette Base
2000 Pontiac Firebird Formula
2000 Pontiac Firebird Trans Am
2001 Chevrolet Camaro Z28
2001 Chevrolet Camaro Z28 SS
2001 Chevrolet Corvette Base
2001 Chevrolet Corvette Z06
2001 Pontiac Firebird Formula
2001 Pontiac Firebird Trans Am
2002 Chevrolet Camaro Z28
2002 Chevrolet Camaro Z28 SS
2002 Chevrolet Corvette Base
2002 Chevrolet Corvette Z06
2002 Pontiac Firebird Formula
2002 Pontiac Firebird Trans Am
2003 Chevrolet Corvette 50th Anniversary Edition
2003 Chevrolet Corvette 50th Anniversary Edition Pace Car
2003 Chevrolet Corvette Base
2003 Chevrolet Corvette Z06
2004 Chevrolet Corvette Base
2004 Chevrolet Corvette Z06
2004 Pontiac GTO Base
2005 Chevrolet Corvette Base
2005 Pontiac GTO Base
2006 Chevrolet Corvette Base
2006 Chevrolet Trailblazer SS
2006 Pontiac GTO Base
2007 Chevrolet Corvette Base
2008 Chevrolet Corvette Base
2009 Chevrolet Corvette Base
2010 Chevrolet Corvette Base
2010 Chevrolet Corvette Grand Sport
2011 Chevrolet Corvette Base
2011 Chevrolet Corvette Grand Sport
2012 Chevrolet Corvette Base
2012 Chevrolet Corvette Grand Sport
2013 Chevrolet Corvette Base
2013 Chevrolet Corvette Grand Sport

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1