Part #: NSK1000-SS-X. This 'build to order' clutch kit is perfect for cars with HP modifications beyond stage 3. The race-engineered pressure plate is tweaked for maximum load. The discs feature a puck design with sprung and un-sprung choices. Friction materials include Sintered Iron and Graphite Impregnated Ceramic. Engagement can be sudden. Hydraulic systems may need an upgrade for proper clutch separation. A single mass steel SFI approved flywheel is a must for safety. Torque ratings are calculated when you order. The Race Engineered Pressure Plates (SS) in Stage 3 and 4 kits offer more transmittable torque, stability, longer life, and great thermal resistance. They also provide better dynamics at high clamp loads. Torque Rating (at crank): 800+ Ft-Lb. Uses flywheel part # SBCNIS-2.
Using this South Bend Extreme Stage 4 Clutch Kit is a great way to enhance your car's performance. First, make sure you have the single mass steel SFI approved flywheel (part # SBCNIS - 2) as it's required for safety. When installing, pay attention to the engagement characteristics which can be a bit abrupt. You might need to upgrade your hydraulic system to ensure proper clutch separation. For maintenance, keep an eye on the friction materials (Sintered Iron or Graphite Impregnated Ceramic). If you notice any unusual wear or performance issues, it's a good idea to have it checked. Also, since the torque ratings are calculated at the time of ordering, make sure to provide accurate details about your car's HP modifications.
