Spec Clutch SC383 Stage 3 Performance Clutch Kit

The Spec Clutch SC383 Stage 3 Clutch Kit is engineered for heavily modified street and race engines that demand serious torque capacity without sacrificing daily drivability. Designed and hand-built in the U.S.A., this kit strikes a balance between aggressive engagement and manageable street feel, making it a top choice for performance enthusiasts across a wide range of motorsport disciplines.

At the heart of the Stage 3 kit is a carbon semi-metallic puck disc — available in 4 or 6 puck configurations depending on application — paired with a high-clamp pressure plate for maximum clamping force. The sprung hub assembly is double-sprung with spring cover reliefs for enhanced flexibility, while heat-treated components deliver long-term strength and durability under both street and track abuse.

Kit Includes:

• High-clamp performance pressure plate
• Carbon semi-metallic 4 or 6 puck friction disc (application dependent; 6 puck standard on most applications)
• High-torque sprung hub and disc assembly
• Release bearing
• Installation tool kit

Key Features:

• Carbon semi-metallic friction material for outstanding drivability, service life, and torque capacity
• Double-sprung hub with spring cover reliefs for flexibility and smooth engagement
• Heat-treated hub components for strength under high-stress conditions
• SFI approved — suitable for sanctioned racing events
• Designed and hand-built in the U.S.A.

Recommended Driving Applications: Street, Drag, Drift, Road Race, Rallye, Pulling, Autocross

As part of SPEC's street/strip stage lineup (Stages 1–3+), the Stage 3 is recommended for performance builds that still see regular road use. For dedicated race-only builds, see SPEC Stage 4 and Stage 5 options.