SPEC is a Manufacturer of street high performance and racing clutches and flywheels. Featuring Clutch Kits From street kit Stage 1, 2, 2+, 3, and 3+ to Race Kits Stage 4 and 5. And now the SPEC Super Twin with TQ ratings of over 1500 FT TQ! Every SPEC Clutch Kit and Flywheel has been SFI Approved.
This Stage 4 Clutch kit is a solid hub version of the stage 3. The hub is solid 8-rivet and the assembly is heat treated for strength and durability. It is available in a 3, 4 or 6 puck configuration. Use the 3 puck for the lightest option or the 6 puck for the smoothest engagement. The 4 puck is a good compromise for both. Street drivable in 6 puck configuration, but not street friendly due to the rigid hub. The SPEC Stage 4 Clutches are designed to be the ultimate strip clutch. A Stage 4 is designed to handle all the power you're putting down and to deliver sharp but smooth engagement. Best for drag racing, road racing, pulling, rally and drift.
Kit Part Number: SF504-2 (10 Spline / Stock) Torque Capacity: 755 ft tq Fits Vehicles: 2011 Ford Mustang GT V8 5.0, 2011 2012 2013 2014 Ford Mustang V6 3.7L
Clutch Kit Notes: The SF37A billet flywheel is configured to accept the original V6 3.7L clutch and the V8 5.0L Coyote GT clutch. The V8 clutch kits cannot be used with the original dual mass flywheel. Purchasing a complete SPEC package will eliminate the possibility of fitment issues that exist with the superseded factory dealer parts. Stages 1-3+ are recommended for street/strip, while Stages 4-5 are race only. These clutch kits have the 6 bolt pressure plate cover pattern for use in cars through 2/2011 production or in a any car with a 6 bolt pressure plate pattern flywheel. All SPEC modular flywheels have a 6,9 and custom 12 bolt pattern for use with a number of pressure plates.