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  See more parts for Buick Regal
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ACT HD/Race Rigid 6 Pad Kit Buick Regal | Chevrolet | Oldsmobile Cutlass | Pontiac Firebird | GTO 1964-19 - GM6-HDR6

ACT GM6-HDR6 Heavy Duty Clutch Kit

Introducing the ACT GM6-HDR6, a top-tier Heavy Duty Clutch Kit designed for those who demand performance and reliability. This kit features ACT's renowned Heavy Duty pressure plate, engineered with an exclusive diaphragm design that significantly enhances clamp load while minimizing deflection. This means you can expect a longer clutch life and consistent performance, whether you're on the track or the street.

Every diaphragm undergoes a rigorous four-stage heat-treating process, ensuring that it can withstand the toughest conditions. The precision cover stampings of the pressure plate provide added rigidity, which translates to better performance under stress.

The 6-pad rigid race disc is crafted from high-quality ceramic friction materials, ensuring excellent heat tolerance and durability. The chrome-moly hub is heat-treated for added strength, making this kit a reliable choice for high-performance applications. While the engagement may feel harsher compared to standard setups, the trade-off is quicker shifts and a more engaging driving experience.

Customer Feedback

Many customers have praised the GM6-HDR6 for its performance, stating, "The engagement is definitely more aggressive, but I love how quickly I can shift now." Another user mentioned, "This clutch kit completely transformed my car's responsiveness; it's like driving a whole new vehicle!"

Features:

  • Light to moderate pedal effort with aggressive engagement
  • Moderate friction life, enhanced by ACT's exclusive diaphragm design
  • Carefully engineered and assembled for maximum performance
  • Recommended for race use only
  • 100% clamp load tested for reliability at high RPMs

Specifications:

  • Clutch Master Cylinder Included: No
  • Grease Included: Yes
  • Grade Type: Performance
  • Pilot Bushing Included: No
  • Pressure Plate Type: Heavy Duty
  • Release Bearing Included: Yes
  • Clutch Disc Diameter: 11 in (280 mm)
  • Disc Material: Ceramic
  • Input Spline Quantity: 26
  • Input Shaft Diameter: 1.125 in
  • Alignment Tool Included: Yes
  • Disc Type: Solid
  • Pressure Plate Bolts Included: No
  • Clutch Slave Cylinder Included: No
  • Flywheel Bolts Included: No
  • Pilot Bearing Included: Yes
  • Product Weight: 28.2 lbs
  • Torque Capacity: 908 ft/lbs
  • Torque Capacity Over OE: 0.56

Fitment:

The ACT GM6-HDR6 is compatible with the following vehicles:

  • Buick Regal 1973-1977
  • Chevrolet Bel Air 1971-1975
  • Chevrolet Biscayne 1971-1975
  • Chevrolet Camaro 1970-1981
  • Chevrolet Chevelle 1964-1977
  • Chevrolet Corvette 1970-1982
  • Chevrolet Impala 1971-1976
  • Oldsmobile Cutlass 1971-1973
  • Pontiac Firebird 1970-1981
  • Pontiac GTO 1971-1973

Installation Instructions:

For detailed installation instructions, please CLICK HERE.

Other Part Numbers:
ACT #actGM6-HDR6

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
1973-1977
 Buick Regal
1971-1975
 Chevrolet Bel Air
1971-1975
 Chevrolet Biscayne
1970-1981
 Chevrolet Camaro
1964-1977
 Chevrolet Chevelle
1970-1982
 Chevrolet Corvette
1971-1976
 Chevrolet Impala
1971-1973
 Oldsmobile Cutlass
1970-1981
 Pontiac Firebird
1971-1973
 Pontiac GTO

ACT Banner

ACT ? Advanced Clutch Technology | Clutch Kits & Flywheels Built to Handle Real Power

If you've added boost, tuned for more power, or simply want better throttle control, then your stock clutch won't cut it. That?s where ACT (Advanced Clutch Technology) comes in delivering high-performance clutch kits and flywheels designed for real drivers who push their builds on the street, strip, or track.

ACT?s lineup includes everything from daily driver friendly HD kits to hardcore twin disc setups for serious horsepower. Whether you?re launching hard in a WRX, drifting in a 370Z, or canyon carving in an M3, ACT gives you the torque capacity and engagement you need without sacrificing drivability.

Why ACT? Because Power Without Control Is Useless.
  • Hold More Power Engineered to handle turbo, supercharger, and high-compression builds
  • Faster Engagement Stronger pressure plates for better bite off the line
  • Better Pedal Feel Balanced response without going full race-car stiff
  • Reduced Rotational Mass Lightweight flywheels improve rev-matching and response
  • No Guesswork Direct-fit applications, no fabbing, no hassle
ACT Clutch Kits and Flywheels Fit the Cars Enthusiasts Build

ACT doesn?t just make universal performance parts ? they build complete, vehicle-specific clutch solutions for enthusiast favorites. Whether you daily a Civic Type R, track a Subaru STI, drift a 240SX, or drag a Mustang GT, ACT offers the right clutch to match your build goals.

Top supported platforms include the Nissan 350Z/370Z, Toyota Supra A90, Chevy Camaro SS/ZL1, Mitsubishi Evo, Ford Focus RS/ST, and BMW M3/M4 ? each with clutch options tuned to your driving needs.

What ACT Offers:
  • Performance Clutch Kits From HD street kits to twin-disc race systems
  • Clutch Discs 6-puck, full-face, rigid or sprung to match your style
  • Pressure Plates Heavy-duty options that increase clamp load without sacrificing control
  • Chromoly Lightweight Flywheels Quicker revs, smoother shifts, and less drivetrain stress
  • Complete Hardware Kits Everything you need for a proper install
Performance Tested. Driver Approved.

ACT isn?t hype ? it?s proven. Their clutches are SFI-certified, track-tested, and used by racers in drag, time attack, autocross, drift, and rally. But what really matters? They hold power, last longer, and feel right even after hundreds of hard launches or hours of canyon carving.

Whether you're upgrading for more power or replacing a tired OEM clutch, ACT gives you the bite, strength, and feel to drive harder with confidence. No compromises, no excuses just parts that work when it matters.

ACT warrants all products to be free of defects in materials and workmanship for normal use and service for a period of one (1) year from retail purchase. Written notice must be immediately given to ACT within the warranty period. We require a copy of the purchase receipt showing the unit was purchased from an Authorized Dealer or Advanced Clutch Technology directly to verify the product is under warranty. Products purchased used do not carry a warranty. This warranty is to the original purchaser and is non-transferable. All non-warranty items are subject to a $50 inspection bench test fee.

ACT reserves the right to examine any part returned for warranty claim to determine, to ACT's satisfaction, whether the material or workmanship of the part does not conform to this limited warranty. ACT's obligation under this warranty shall be limited to repairing, replacing, or crediting, at its option, any part which is deemed covered by ACT. No labor, lift or storage charges will be reimbursed for any reason. Damage to ACT's parts resulting from misuse, improper use, or abuse shall void this limited warranty. Failure to follow ACT's installation instructions and the vehicle manufacturers installation procedures and specifications shall void this limited warranty.

ACT undertakes no responsibility for the quality of the goods except as otherwise provided in this contract. ACT assumes no responsibility that the goods will be fit for any particular purpose for which you may be buying these goods, except as otherwise provided in the contract. ACT shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty.

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