Spec Clutch SV873F-2 Stage 3+ Full-Face Carbon Metallic Clutch Kit

The SPEC SV873F-2 Stage 3+ Clutch Kit is engineered for heavily modified street and race engines that have outgrown the torque capacity of a standard Stage 3 clutch. Rated to handle up to 578 ft-lbs of torque, this kit delivers a winning combination of high clamping force, superior friction material, and genuine daily drivability—making it the premier choice among SPEC's single-disc clutch lineup for high-powered street-driven vehicles.

Key Features:

• Full-faced carbon metallic friction disc — provides exceptional friction coefficient, outstanding wear characteristics, and excellent heat resistance compared to puck-style designs
• High clamp pressure plate — maximizes clamping load to handle extreme torque without slip
• High-torque sprung hub and disc assembly — the sprung hub design absorbs driveline shock and maintains smooth, manageable engagement for street use
• Rated up to 578 ft-lbs torque — steps up significantly beyond the Stage 3 (517 ft-lbs) for heavily built engines
• Better manageability than Stage 3 — full-faced disc design offers improved drivability and engagement quality over puck-style clutches at comparable torque levels
• Superior wear characteristics — carbon metallic full-face material delivers longer service life under high-stress conditions
• Kit includes: high clamp pressure plate, full-faced carbon metallic clutch disc, high-torque sprung hub and disc assembly, release bearing, and installation tool

Intended Use: Street, Drag Racing, Drift, Road Race, Pulling

The Stage 3+ sits at the top of SPEC's street-friendly clutch range, positioned above the Stage 3 and below the race-only Stage 4. It is the ideal upgrade for vehicles with significant power adders—such as large turbocharger or supercharger setups—where a streetable, daily-drivable clutch is still required. Note: This kit requires the use of a compatible SPEC billet single-mass flywheel and replaces OEM dual-mass flywheel designs.