If you're looking to step up your clutch game, the ACT GM9-HDSS Heavy Duty/Performance Street Sprung Kit might just be what you need. This kit combines ACT's heavy-duty pressure plate with a performance street disc that’s been a favorite among enthusiasts for a while now. The pressure plate features a unique diaphragm design that cranks up the clamp load, minimizes deflection, and ultimately helps your clutch last longer. Seriously, these things are built to take a beating.

What I really appreciate about ACT is their attention to detail. Each diaphragm goes through a rigorous four-stage heat-treating process, which means you’re getting top-notch performance. Plus, the pressure plates have precision cover stampings that add some serious rigidity and consistency. You’ll notice a difference right away.

As for the performance street discs, they’re made from premium organic materials that boast a high copper content. This means better heat transfer during those spirited drives. The steel-backed lining gives it that extra burst strength and durability you want when you’re pushing your car. And let’s not forget, these discs are designed with reduced marcel, which translates to quicker shifts—perfect for when you’re in the heat of the moment.

Install Instructions:

• For Instructions CLICK HERE

Features:

• Light to moderate pedal effort with smooth engagement—no more fighting the clutch.
• Longer friction life thanks to that clever diaphragm design ACT has going on.
• Engineered for precision and balance, using premium organic materials that handle heat like a champ.
• Great for both street and race applications—versatility is key.
• Each unit is clamp load tested and dynamically balanced, so you can trust it at high RPMs.

Specifications:

• Clutch Master Cylinder Included: No
• Grease Included: Yes
• Grade Type: Performance
• Flywheel Included: No
• Pilot Bushing Included: No
• Pressure Plate Type: Heavy Duty
• Release Bearing Included: No
• Clutch Disc Diameter: 11 in (280 mm)
• Disc Material: Organic
• Input Spline Quantity: 26
• Input Shaft Diameter: 1.125 in
• Alignment Tool Included: Yes
• Disc Type: Sprung Solid
• Pressure Plate Bolts Included: No
• Clutch Slave Cylinder Included: No
• Flywheel Bolts Included: No
• Pilot Bearing Included: No
• Product Weight: 29.8 lbs
• Torque Capacity: 709 ft/lbs (that’s a solid bump over OE)

Notes:

• Make sure you pair this with a flat flywheel or the ACT 600585 flywheel for LS2/LS3/LS7 setups.

Products Fitment:

• Chevrolet Camaro 1998-2002
• Chevrolet Corvette 1997-2013
• Chevrolet Corvette Grand Sport 2010-2013
• Chevrolet Corvette Z06 2001-2004
• Chevrolet TrailBlazer 2006
• Pontiac Firebird 1998-2002
• Pontiac GTO 2004-2006