ACT 1971 Pontiac Firebird HD/Perf Street Sprung Clutch Kit

GM8-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. HD/Perf Street Sprung Light to moderate pedal effort, smooth positive engagement, OE to mild gear rattle; Longer friction life, extended by ACT's exclusive diaphragm design; Carefully engineered, precisely assembled, accurately balanced, with premium organic friction materials for heat tolerance and reduced fade; Recommended for street and 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 GM8-HDSS Heavy Duty Performance Street Sprung Clutch Kit is engineered for Pontiac Firebird applications requiring dependable street performance, smooth engagement, and increased clutch durability. This kit combines ACT’s popular Heavy Duty pressure plate with a Performance Street sprung disc designed to provide consistent power transfer for street and race use. It fits 1971, 1972, 1973, and 1974 Pontiac Firebird models, making it a practical upgrade over a worn or factory-style clutch assembly.
ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection, and help maximize friction life. Each diaphragm undergoes a four-stage heat-treating process for reliable performance under demanding conditions. Precision cover stampings add rigidity and consistency, while every pressure plate is clamp-load tested and dynamically computer balanced to support smooth operation at high engine speeds. The result is light to moderate pedal effort with positive engagement and dependable holding power.
The Performance Street sprung disc uses premium organic friction materials with high copper content to improve heat transfer and help reduce fade. Steel-backed lining increases burst strength and durability, while reduced marcel promotes faster shift action to complement the ACT pressure plate. Carefully engineered and precisely assembled components provide smooth engagement, longer friction life, and a driving feel suited to daily street use, spirited driving, and select race applications. The sprung hub design also helps support comfortable operation with only OE to mild gear rattle characteristics.

• Backed by ACT’s one-year industry warranty and commitment to performance excellence.

Features:

• Heavy Duty Pressure Plate: Exclusive diaphragm design increases clamp load, reduces deflection, and helps extend clutch life.

• Performance Street Sprung Disc: Premium organic friction material supports smooth engagement, heat tolerance, and reduced fade.

• High Copper Content: Improves heat transfer for consistent performance during demanding driving conditions.

• Steel-Backed Lining: Enhances burst strength and durability for reliable service.

• Reduced Marcel: Promotes faster shift action while complementing the ACT Heavy Duty pressure plate.

• Balanced and Tested: Clamp-load tested and dynamically computer balanced for smooth high-RPM reliability.

• Street and Race Use: Recommended for daily driving, spirited street performance, and select racing applications.

• Vehicle
  Fitment:
  Pontiac Firebird Base 1971
  Pontiac Firebird Base 1972
  Pontiac Firebird Base 1973
  Pontiac Firebird Base 1974