Spec Clutch SZ234 Stage 4 Clutch Kit - Carbon Composite 6-Paddle

The SPEC SZ234 Stage 4 Clutch Kit is engineered for heavily modified, high-output engines where maximum torque capacity, instantaneous engagement, and reduced rotating mass are the top priorities. As a solid-hub evolution of the Stage 3 clutch, the Stage 4 is purpose-built for motorsport applications including drag racing, drifting, road racing, rally, circle track, and pulling competition.

Key Features:

• High-clamp pressure plate for maximum clamping force and torque transfer
• Carbon semi-metallic friction disc available in 3-puck, 4-puck, or 6-puck configurations — choose 3-puck for the lightest weight, 6-puck for the smoothest engagement, or 4-puck as a balanced compromise
• Solid (unsprung) hub with 8-rivet construction — heat-treated for exceptional strength and durability under high-load conditions
• 8.875-inch disc diameter with a 22-spline, 0.938-inch input shaft
• Throw-out bearing and installation tool kit included for a complete, ready-to-install package
• Flywheel not included — compatible with SPEC billet flywheels

Intended Use: Drag Racing, Drifting, Road Racing, Rally, Circle Track, Pulling

Important Note: The Stage 4's rigid solid hub design delivers aggressive, near-instantaneous clutch engagement. This characteristic makes it unsuitable for regular street driving. The 6-puck configuration offers the most manageable engagement of the available options but remains a race-oriented setup. This clutch is designed and hand-built in the U.S.A. to SPEC's exacting performance standards.