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Hays 10-630 Performance Flywheel

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Clutch Flywheel

Performance Flywheel

Performance Flywheel; Steel; Detroit External Balance; 168 Tooth; 30 lbs.; w/Small Journal;

  • Engine Balance: External
  • Finish: Steel
  • Material: Steel
  • Tooth Quantity: 168
  • WARNING CA Proposition 65: No

  • S.F.I. 1.1 Certified
  • Fits External Balance 4.3/5.0/5.7L fits Chevy
  • 168 Tooth Flywheel
  • Drilled 10.5 In And 11 In Clutches
  • Weighs 30 Lbs
  • Limited 90 Day Warranty

Hays Steel Flywheels are manufactured from certified billet material that will not break up under the stress of high RPM and severe punishment of racing. All Hays flywheels are certified S.F.I. spec 1.1. This 168 tooth flywheel fits the external balance 4.3/5.0/5.7 liter fits Chevy, 1986 to 1993 models with a one piece real main seal. The flywheel is drilled for 10.5 in Borg-Beck diaphragm, 11 in Borg-Beck diaphragm, long style and Mark XII clutches. Its weighs 30 lbs. Flywheel bolts included. Other applications available.

Drag racing's biggest stars have relied on Hays clutches since SEMA Hall of Famer Bill Hays decided back in 1958 that there had to be a way to build one that could stand up to racing's unimaginable power and torque. "Big Daddy" Don Garlits, Tom "the Mongoose" McEwen, and countless icons of the sport went to just one place for their clutches: Hays. Now part of Holley Performance, Hays continues to develop complete clutch kits for an infinite number of high-performance applications, pressure plates for precise gear changes, clutch discs for smooth, chatter-free engagement, and flywheels and flexplates ideal for today's vehicles.