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GM7-HDSS - ACT Heavy Duty Performance Street Sprung Clutch Kit
$675.00
SKU
GM7-HDSS
Specifications
| Item Description | ACT Heavy Duty Performance Street Sprung Clutch Kit |
|---|---|
| Product Weight (lbs.) | 22.1 |
| Torque Capacity (ft/lbs.) | 629 |
| Torque Capacity Over OE | 32% |
| Disc Material | Organic |
| Clutch Disc Diameter (Inches) | 10.5 |
| Clutch Disc Diameter (Millimeters) | 266 |
| Input Shaft Diameter (inches) | 1.125 |
| Pressure Plate Type | Heavy Duty |
| Warranty | 12 Months (view details) |
Description
GM7-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc. 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 Performance Street discs feature premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs have reduced marcel for faster shift action to complement ACT pressure plates, with increased strength and reliability.
| Feel | Light to moderate pedal effort, smooth positive engagement, OE to mild gear rattle |
|---|---|
| Life | Longer friction life, extended by ACT's exclusive diaphragm design |
| Quality | Carefully engineered, precisely assembled, accurately balanced, with premium organic friction materials for heat tolerance and reduced fade |
| Recommended Use | Recommended for street and race use |
| ACT Difference | 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability |
Vehicle Fitment
| Application | Engine |
|---|---|
| 1971 Pontiac Catalina Base | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1971 Pontiac Catalina Brougham | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1971 Pontiac Catalina Safari | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1971 Pontiac Firebird Esprit | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1971 Pontiac Firebird Esprit | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1971 Pontiac Firebird Formula | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1971 Pontiac Firebird Formula | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1971 Pontiac GTO Base | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1972 Chevrolet Corvette Base | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1972 Pontiac Catalina Base | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1972 Pontiac Catalina Base | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1972 Pontiac Catalina Brougham | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1972 Pontiac Catalina Brougham | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1972 Pontiac Catalina Safari | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1972 Pontiac Catalina Safari | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1972 Pontiac Firebird Esprit | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1972 Pontiac Firebird Formula | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1972 Pontiac Firebird Trans Am | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1972 Pontiac GTO Base | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1973 Pontiac Firebird Esprit | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1973 Pontiac Firebird Formula | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1973 Pontiac Firebird Trans Am | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1974 Pontiac Firebird Base | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1974 Pontiac Firebird Base | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1974 Pontiac Firebird Esprit | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1974 Pontiac Firebird Esprit | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1974 Pontiac Firebird Formula | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1974 Pontiac Firebird Formula | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1974 Pontiac Firebird Trans Am | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1974 Pontiac Firebird Trans Am | 6.6 V8 GAS FI 6555cc | OHV | Naturally Aspirated |
| 1975 Pontiac Firebird Base | 6.6 V8 GAS FI | OHV | Naturally Aspirated |
| 1975 Pontiac Firebird Base | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1975 Pontiac Firebird Esprit | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1975 Pontiac Firebird Formula | 6.6 V8 GAS FI | OHV | Naturally Aspirated |
| 1975 Pontiac Firebird Formula | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1975 Pontiac Firebird Trans Am | 6.6 V8 GAS FI | OHV | Naturally Aspirated |
| 1975 Pontiac Firebird Trans Am | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1976 Pontiac Firebird Base | 6.6 V8 GAS FI | OHV | Naturally Aspirated |
| 1976 Pontiac Firebird Base | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1976 Pontiac Firebird Esprit | 6.6 V8 GAS FI | OHV | Naturally Aspirated |
| 1976 Pontiac Firebird Esprit | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1976 Pontiac Firebird Formula | 6.6 V8 GAS FI | OHV | Naturally Aspirated |
| 1976 Pontiac Firebird Formula | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1976 Pontiac Firebird Trans Am | 6.6 V8 GAS FI | OHV | Naturally Aspirated |
| 1977 Pontiac Firebird Base | 6.6 V8 GAS FI | OHV | Naturally Aspirated |
| 1977 Pontiac Firebird Base | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1977 Pontiac Firebird Base | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1977 Pontiac Firebird Esprit | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1977 Pontiac Firebird Esprit | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1977 Pontiac Firebird Formula | 6.6 V8 GAS FI | OHV | Naturally Aspirated |
| 1977 Pontiac Firebird Formula | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1977 Pontiac Firebird Formula | 5.7 V8 GAS FI 5733cc | OHV | Naturally Aspirated |
| 1977 Pontiac Firebird Trans Am | 6.6 V8 GAS FI | OHV | Naturally Aspirated |
| 1979 Pontiac Firebird Base | 4.9 V8 GAS FI | OHV | Naturally Aspirated |
| 1979 Pontiac Firebird Esprit | 4.9 V8 GAS FI | OHV | Naturally Aspirated |
| 1979 Pontiac Firebird Formula | 4.9 V8 GAS FI | OHV | Naturally Aspirated |
| 1979 Pontiac Firebird Trans Am | 4.9 V8 GAS FI | OHV | Naturally Aspirated |
| 1980 Pontiac Firebird Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1980 Pontiac Firebird Esprit | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1980 Pontiac Firebird Formula | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1980 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1981 Pontiac Firebird Formula | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1981 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1982 Chevrolet Camaro Berlinetta | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1982 Chevrolet Camaro Sport | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1982 Chevrolet Camaro Z28 | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1982 Chevrolet Camaro Z28 Indianapolis 500 Pace Car | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1982 Pontiac Firebird Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1982 Pontiac Firebird S/E | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1982 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1983 Chevrolet Camaro Berlinetta | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1983 Chevrolet Camaro Sport | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1983 Chevrolet Camaro Z28 | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1983 Pontiac Firebird Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1983 Pontiac Firebird S/E | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1983 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1984 Chevrolet Camaro Berlinetta | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1984 Chevrolet Camaro Sport | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1984 Chevrolet Camaro Z28 | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1984 Pontiac Firebird Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1984 Pontiac Firebird S/E | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1984 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1985 Chevrolet Camaro Berlinetta | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1985 Chevrolet Camaro Iroc-Z | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1985 Chevrolet Camaro Sport | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1985 Chevrolet Camaro Z28 | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1985 Pontiac Firebird Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1985 Pontiac Firebird S/E | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1985 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1986 Chevrolet Camaro Berlinetta | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1986 Chevrolet Camaro Iroc-Z | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1986 Chevrolet Camaro Iroc-Z | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1986 Chevrolet Camaro Sport | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1986 Chevrolet Camaro Z28 | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1986 Chevrolet Camaro Z28 | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1986 Pontiac Firebird Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1986 Pontiac Firebird S/E | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1986 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1987 Chevrolet Camaro Iroc-Z | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1987 Chevrolet Camaro Iroc-Z | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1987 Chevrolet Camaro LT | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1987 Chevrolet Camaro Sport | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1987 Chevrolet Camaro Z28 | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1987 Chevrolet Camaro Z28 | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1987 Pontiac Firebird Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1987 Pontiac Firebird Base | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1987 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1987 Pontiac Firebird Trans Am | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1988 Chevrolet Camaro Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1988 Chevrolet Camaro Iroc-Z | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1988 Pontiac Firebird Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1988 Pontiac Firebird Trans Am | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1988 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1988 Pontiac Firebird Trans Am | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1989 Chevrolet Camaro Iroc-Z | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1989 Chevrolet Camaro RS | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1989 Pontiac Firebird Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1989 Pontiac Firebird Formula | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1989 Pontiac Firebird Formula | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1989 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1989 Pontiac Firebird Trans Am | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1989 Pontiac Firebird Trans Am GTA | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1989 Pontiac Firebird Trans Am GTA | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1990 Chevrolet Camaro Iroc-Z | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1990 Chevrolet Camaro RS | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1990 Pontiac Firebird Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1990 Pontiac Firebird Formula | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1990 Pontiac Firebird Formula | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1990 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1990 Pontiac Firebird Trans Am | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1990 Pontiac Firebird Trans Am GTA | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1990 Pontiac Firebird Trans Am GTA | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1991 Chevrolet Camaro RS | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1991 Chevrolet Camaro Z28 | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1991 Pontiac Firebird Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1991 Pontiac Firebird Formula | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1991 Pontiac Firebird Formula | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1991 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1991 Pontiac Firebird Trans Am | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1991 Pontiac Firebird Trans Am GTA | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1991 Pontiac Firebird Trans Am GTA | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1992 Chevrolet Camaro RS | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1992 Chevrolet Camaro RS Heritage Edition | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1992 Chevrolet Camaro Z28 | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1992 Chevrolet Camaro Z28 Heritage Edition | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1992 Pontiac Firebird Base | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1992 Pontiac Firebird Formula | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1992 Pontiac Firebird Formula | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1992 Pontiac Firebird Trans Am | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1992 Pontiac Firebird Trans Am | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
| 1992 Pontiac Firebird Trans Am GTA | 5.0 V8 GAS FI | OHV | Naturally Aspirated |
| 1992 Pontiac Firebird Trans Am GTA | 5.7 V8 GAS FI | OHV | Naturally Aspirated |
Kit Contents:
Frequently Asked Questions
- Are ACT clutches balanced?
- Yes! All ACT clutch assemblies are computer spin balanced to within .25 oz-in to guarantee help smooth operation across the entire RPM range. For comparison, stock production clutches are typically balanced to within .50 oz-in. Lower is definitely better!
- Will an ACT clutch increase pedal effort?
- ACT pressure plates are specifically designed to handle high torque applications. With ACT's durable design, expect an increase in pedal effort between 15-40% (Heavy Duty) and 50-80% (Xtreme), depending on the application. Clutches developed with less pedal effort often result in a lack of longevity, torque capacity and/or engagement quality.
- Do ACT clutches require a break in period?
- For organic street discs, we recommend breaking in the clutch for 300-500 miles with mild engagement, such as stop-and-go city driving prior to racing or spirited driving. ACT race discs usually only require a few hard slips to lap in the surfaces prior to normal driving or racing. Do not overheat the clutch during the break in period, as this can result in friction surfaces fusing together, hot spots, and friction surface glazing.
- Are ACT clutches repairable or rebuildable?
- In some situations, rebuilds or repairs may be possible (see warranty), after inspection of the clutch assembly. Please contact our technical department for further information. Because of special modifications, we do not recommend servicing by a general clutch rebuilder.
- How much does an ACT clutch weigh?
- The weight of the ACT clutch assembly will usually be the same as a stock OEM clutch assembly.
PROP 65 WARNING
This product can expose you to chemicals including carbon black, glass wool fibers, and silica (in clutch discs), chromium and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. for more information, visit www.P65Warnings.ca.gov