Spec Clutch SF723 Stage 3 Performance Clutch Kit

The Spec Clutch SF723 Stage 3 Clutch Kit is engineered for heavily modified street and race engines that demand aggressive engagement without sacrificing daily drivability. Delivering a rated torque capacity of 425 lb-ft, this kit strikes the ideal balance between performance and street manners — offering a comfortable pedal feel and quick, confident engagement along with excellent wear characteristics under both low and high stress conditions.

At the core of the Stage 3 kit is a carbon semi-metallic 6-puck sprung hub disc, which has established itself as the benchmark puck clutch for drivability, longevity, and torque capacity. The sprung hub is double-sprung with spring cover reliefs for added flexibility, while heat-treated components provide the strength and durability needed for demanding applications. A high-clamp pressure plate rounds out the assembly, maximizing clamping force for consistent, reliable power transfer.

Kit Includes:

• High-clamp performance pressure plate
• Carbon semi-metallic 6-puck sprung hub disc assembly
• Pilot bearing and throwout bearing
• Clutch alignment tool

Key Features:

• 425 lb-ft torque capacity — built for modified street and race applications
• Carbon semi-metallic friction material — leading puck design for drivability, life, and torque capacity
• Double-sprung hub with spring cover reliefs for flexibility and heat-treated components for durability
• High-clamp pressure plate for maximum clamping force and power transfer
• Streetable engagement — aggressive performance without sacrificing daily usability
• Suitable for Street, Drag, Drift, Road Race, Rallye, Pulling, and Autocross

The Spec Stage 3 is recommended for street/strip use and represents the upper tier of Spec's street performance lineup before transitioning to race-only Stage 4 and Stage 5 kits. Every Spec Clutch kit is SFI approved and developed through real-world motorsport competition for proven reliability.