Spec Clutch SV285 Stage 5 Clutch Kit - Sintered Iron Full-Face Disc

The Spec Clutch SV285 Stage 5 Clutch Kit is engineered for extreme performance applications, including heavily modified drag race and pulling builds that demand maximum torque capacity and aggressive, slipper-style progressive engagement. With a torque capacity of 439 lb-ft, this is the highest-output stage in the SPEC clutch lineup and is purpose-built for race-only use.

At the heart of this kit is a full-metallic sintered iron disc delivering the highest possible friction coefficient available in the SPEC stage system. The solid 12-rivet hub assembly is heat-treated for strength and durability under repeated high-load cycling. The high-clamp pressure plate provides maximum clamping force, with adjustability available on select applications.

What's Included:

• High-clamp performance pressure plate
• Rigid sintered iron full-face disc assembly (unsprung/solid hub)
• Release bearing
• Installation tool kit

Key Features:

• 439 lb-ft torque capacity
• Full-metallic sintered iron friction material — highest friction coefficient in the SPEC lineup
• Solid 12-rivet, heat-treated hub for maximum strength
• Progressive torque-induced engagement (slipper clutch behavior)
• High-clamp pressure plate with adjustability on select applications
• Ideal for drag racing and pulling competition

Intended Use: Drag Racing, Pulling

Note: This clutch is not street-friendly due to harsh engagement characteristics. For best results, this kit should be configured to your specific application — consult a SPEC technical representative before ordering with details about your build and intended use.