LS2/LS3/LS7 SPEC Stage 3 Clutch Kit


Model Number: SC663

Fits Corvette C6, C6 ZO6, 2005-06 GTO, 2010+ Camaro SS

S.P.E.C. Inc, the innovator in LSX clutch technology, introduces their new line of single disc performance clutches and flywheels for LSX powered applications. The Super Single line is now the standard offering and features torque capacity increases of 150 ft lbs per stage over the previous generation SPEC units, with a pedal effort reduction of over 25%!

The clutch kits are available in 7 different single disc stages, supporting all power levels and drivability requirements up to an amazing 967 pound feet torque for the street/strip units and 1100 ft lbs for drag specific units.

The SPEC Super Single not only delivers on performance and drivability, but value, as well. SPEC is maintaining MSRP from the previous generation kits!

Stage 3 clutches come with a sprung center disk with 6-puck pad design. The disk pads are a carbon/ceramic combination, rated to 809ft/Ibs of torque. The ULTIMATE STREET/STRIP CLUTCH! Sharp but smooth engagement with light pedal. SPEC Clutch kits are one of the newest and most popular clutch kits.

For those of you that want more holding power than the Stage 3 can support, but don’t want the harshness of a Stage 4 (which contains no springs on the disk assembly), now available is the upgraded Stage 3+ (SC663H) clutch. This kit includes a full-faced carbon metallic friction disk capable of holding up to 900 ft/Ibs of torque!!! The 3+ offers good daily drivability and better manageability than the stage 3, with even better wear characteristics. Make your selection below.

All kits Include: Pressure plate, clutch disc, TO bearing, pilot bearing, and alignment tool.


For years lightweight flywheels have been used to transfer energy from an engine to the ground more efficiently, resulting in horsepower and torque gains, quicker revving and less internal engine wear.

Please Choose between the Billet Steel or Aluminum Flywheel or No Flyweel.

Also please specify if you would like the “+” Plus option or not.

NOTE: C6 and CTS-V clutch kits are flywheel specific. Be sure to check part number so it corresponds to the specific flywheel your using. New flywheels can be purchased under the flywheel section. Make your selection below:

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SKU: SC663 Category: