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SPEC Clutch Kit Stage 3+ These clutch kits are designed for use with SPEC flywheels or any aftermarket LS1/6 single mass flywheel. These kits increase friction surface diameter to 12inches while reducing rotating mass by up to 36%. The SC57 flywheels are for use with non-stock clutch designs. For a flywheel to be used with the OE style clutch, use pn SC66A-2 or SC66S-2. The package includes race bolt kit and tool.
Click here for SPEC Clutch stage explanations and recommendations
SPEC Maximum Torque Recommendations:
Stages 1-3+ recommended for street/strip Stages 4-5 Race only.
Applications:
SPEC Clutch Stage Information: Click here for SPEC Clutch Recommendations Warranty Policy: Click here for SPEC's Warranty Policy