Spec Clutch SF703 Stage 3 Performance Clutch Kit - Carbon Semi-Metallic 6-Puck

The SPEC SF703 Stage 3 Clutch Kit is engineered for heavily modified street and race applications that demand aggressive engagement without sacrificing daily drivability. Delivering up to 550 ft-lbs of torque capacity, this kit is purpose-built for drivers who push their vehicles hard across a wide range of performance disciplines.

At the heart of the Stage 3 system is a carbon semi-metallic 6-puck sprung hub disc — SPEC's benchmark puck clutch design proven in drivability, service life, and torque capacity. The disc features a double-sprung hub with spring cover reliefs for added flexibility, while heat-treated components provide the strength and durability required under sustained high-stress use. A high-clamp pressure plate ensures firm, consistent clamping force across the full RPM range.

Kit Includes:

• High-clamp performance pressure plate
• Carbon semi-metallic 6-puck sprung hub disc (4-puck available upon request)
• Release bearing
• Installation tool kit

Key Specifications:

• Disc Diameter: 11.000 in. (279mm)
• Input Shaft Diameter: 1.063 in.
• Input Spline Count: 10
• Torque Capacity: Up to 550 ft-lbs
• Flywheel: Not included
• Disc Quantity: 1
• UPC: 841802121834

Recommended Driving Applications:

• Street / Street-Strip
• Drag Racing
• Road Racing
• Drifting
• Rallye
• Pulling
• Autocross

The SPEC Stage 3 strikes the ideal balance between race-level torque handling and streetable daily engagement — making it the go-to upgrade for performance builds that see both track and street duty. All SPEC clutch kits and flywheels are SFI approved.