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Hays Performance Flywheel 12-240

Hays Performance Flywheel 12-240
$792.99 ea
NEWARRIVING SOONEstimated Ship Date 10/16/2023 (If Ordered Today)5 available from HOLLEY PERFORMANCE PRODUCTS as of 09/23/2023
Model: 4006793
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
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 flywheel fits the big block internal balanced 352, 390, 427, 428, 429, 460 CID Ford for 1965 through 1972. This is a 184 tooth flywheel that weighs 40 lbs. Requires an 11 in Borg-Beck Long or Mark XII clutches. This flywheel is thicker than stock and may require a bellhousing spacing or a Lakewood bellhousing to eliminate interference. Flywheel bolts included. Other applications available.
Features:
  • 184 Tooth Flywheel
  • Weighs 40 Lbs
  • Requires 11 In Bbl Or Mark Xii Clutches
  • 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

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 1967 6.4L / 390 / V8 Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Flywheel Thicker Than Stock May Require Bellhousing Spacer
Ford Mustang 1968 6.4L / 390 / V8 Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Flywheel Thicker Than Stock May Require Bellhousing Spacer
Ford Mustang 1969 6.4L / 390 / V8 Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Flywheel Thicker Than Stock May Require Bellhousing Spacer
Ford Mustang 1970 7.0L / 429 / V8 Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Ford Mustang 1971 7.0L / 429 / V8 Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Mercury Cougar 1967 6.4L / 390 / V8 Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Flywheel Thicker Than Stock May Require Bellhousing Spacer
Mercury Cougar 1968 7.0L / 427 / V8
6.4L / 390 / V8
Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Flywheel Thicker Than Stock May Require Bellhousing Spacer
Mercury Cougar 1969 6.4L / 390 / V8 Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Flywheel Thicker Than Stock May Require Bellhousing Spacer
Mercury Cougar 1970 7.0L / 429 / V8 Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Mercury Cougar 1971 7.0L / 429 / V8 Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Mercury Cougar 1973 7.5L / 460 / V8
6.6L / 400 / V8
Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Mercury Cougar 1974 7.5L / 460 / V8
6.6L / 400 / V8
Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Mercury Cougar 1975 6.6L / 400 / V8
7.5L / 460 / V8
Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Mercury Cougar 1976 6.6L / 400 / V8
7.5L / 460 / V8
Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Mercury Cougar 1977 6.6L / 400 / V8 Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.
Mercury Cougar 1978 6.6L / 400 / V8 Steel; Neutral Internal Balance; 184 Tooth; 40 lbs.

Specifications:

# of Teeth 184
Application Ford
Emission Code 5
Engine Big Block Ford
Engine Balance Internal
Finish Steel
Material Steel
Part Type Clutch Flywheel
SFI Approved Yes
SFI Certification 1.1
Tooth Quantity 184
Warranty Limited 90 Day Warranty TX

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Hays Performance Flywheel 12-240:
Mustang Depot 2023