Spec Clutch SN494 Stage 4 Clutch Kit

The Spec Clutch SN494 Stage 4 Clutch Kit is engineered for heavily modified and high-performance engines where maximum torque capacity and instantaneous engagement are the top priorities. This is a race-focused clutch system designed for drivers who demand the absolute limit in power transfer and cannot compromise on engagement response.

The Stage 4 is a solid hub evolution of the Stage 3 design. Rather than a sprung hub, it uses a rigid 8-rivet solid hub that is heat-treated for exceptional strength and long-term durability under extreme operating conditions. This setup eliminates rotational compliance for a direct, aggressive engagement feel — ideal for competitive driving but not intended for daily street use.

Key Features:

• High-clamping pressure plate for maximum holding capacity
• Carbon semi-metallic friction disc — available in 3, 4, or 6-puck configurations
• Solid 8-rivet rigid hub, heat-treated for strength and durability
• Torque rating up to 225 ft-lbs
• Includes bearing and installation tool kit
• SFI approved

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

This clutch is not recommended for street use due to its harsh, instantaneous engagement characteristics. It is best suited for dedicated race and competition vehicles where engagement predictability and street manners are secondary to raw performance.