Upgrade your stock flywheel to a Hays SFI-approved billet steel or aluminum flywheel. Each flywheel is precision machined and engineered to handle extreme duty applications along with being designed to take the punishment of today as high horsepower street, off-road, and race engines.
Features:
- Meets SFI Spec 29.1 For Racing
- Precision CNC Machined For Maximum Strength/Durability
- Aluminum Flywheels Feature Forged Steel Ring Gears
- CAD Designed To Provide Optimum Performance And Reliability
- Available In Internal/External/Zero Balanced Versions
- Limited 90 Day Warranty
Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations
Installation Notes:
When choosing a flywheel take note that a heavy flywheel stores more energy as it spins than a light flywheel. If you have a heavy car combination that requires more power (or inertia) to make it launch without bogging the engine, you will want a heavier flywheel. Remember that a heavier flywheel will be slower to accelerate through the gears where a lighter flywheel creates less inertia at launch but will accelerate faster through the gears.
About Hays
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. 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.
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
| Make |
Model |
Years |
Engine |
Fitment Notes |
| Ford |
Mustang |
1970 |
7.0L / 429 / V8 |
Steel; 28 oz. External Balance; 176 Tooth; 31 lbs. |
| Ford |
Mustang |
1971 |
7.0L / 429 / V8 |
Steel; 28 oz. External Balance; 176 Tooth; 31 lbs. |
STANDARD
