ACT Z64-HDR6 Heavy Duty/Race Rigid 6 Pad Kit

The ACT Z64-HDR6 is engineered for those who demand exceptional performance from their clutch system. This kit features ACT's popular Heavy Duty pressure plate, designed with an exclusive diaphragm mechanism that enhances clamp load while minimizing deflection. This design not only extends the lifespan of the clutch but also ensures consistent performance under extreme conditions.

Construction and Materials

The pressure plates undergo a rigorous four-stage heat-treating process, resulting in superior durability and performance. Precision cover stampings are utilized to maintain rigidity and consistency throughout operation. The 6-pad rigid race discs are constructed from high-quality ceramic friction materials, providing excellent heat resistance and performance capabilities. A chrome-moly hub, also heat-treated, ensures strength and longevity.

Performance Characteristics

With its lightweight and rigid design, the Z64-HDR6 allows for quicker shifts and seamless operation. While the engagement is more aggressive, resulting in increased gear rattle, the trade-off is faster shifting speeds. This 6-pad rigid race disc is optimal for larger clutch sizes, providing enhanced heat absorption for demanding applications.

Installation Notes

For detailed installation instructions, follow this link.

Key Features

• Light to moderate pedal effort with aggressive engagement
• Moderate friction life, extended by ACT's diaphragm design
• Precision-engineered for high heat tolerance and maximum performance
• Recommended for race use only
• 100% clamp load tested and dynamically balanced for reliability at high RPMs

Specifications

• Clutch Disc Diameter: 9.4 in (240 mm)
• Disc Material: Ceramic
• Input Spline Quantity: 23
• Input Shaft Diameter: 1 in
• Disc Type: Solid
• Product Weight: 14.9 lbs
• Torque Capacity: 420 ft/lbs
• Torque Capacity Over OE: 0.72

Fitment

Confirmed fitment for the following models:

• Ford Probe (1989-1992)
• Mazda 626 (1988-1991)
• Mazda MX-6 (1988-1992)