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Hays 12-240

Billet Steel 184-Tooth Flywheel Ford 352, 390, 427, 428, 429, 460

Hays 12-240

490-12-240

made in usa
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Hays 12-240 Billet Steel 184-Tooth Flywheel Ford 352, 390, 427, 428, 429, 460 $374.95
Billet Steel 184-Tooth Flywheel
  • 1965-1972 Ford 352, 390, 427, 428, 429, 460
  • Fits 11" Pressure Plate
  • 40 lbs
  • Internal Balance

  • Hays 12-240 Details

    Billet Steel Flywheels - Ford

    Manufactured from certified billet steel, these flywheels will not break under the stress of high RPM or the punishment of racing. Varying from 25 to 50 pounds based on application, most Hays flywheels are drilled with both the Borg & Beck and Long clutch patterns. All are precision-balanced to either Detroit (external) or neutral (internal) specifications (1.1 SFI-certified). Notes:

  • Flywheel thicker than stock; may require bellhousing spacing (Lakewood bellhousing will eliminate interference)
  • Possible interference between ring gear and bellhousing; may require dial indicating of bellhousing

  • Specifications:

    Material
    Steel
    Engine Balance
    Neutral
    Engine Balance
    Internal
    Weight (lbs.)
    40.0
    Quantity
    Sold individually
    Replaceable Friction Surface
    No
    Ring Gear Tooth Quantity
    184-tooth
    Safety Rating
    SFI 1.1
    Flywheel Material
    Billet steel
    Manufacturer's Part Number:
    12-240


    High-Performance Flywheels for High-Performance Vehicles








    Billet Steel Flywheels
    Manufactured from certified billet steel, these flywheels will not break under the stress of high RPM or the punishment of racing. Varying from 25 to 50 pounds based on application, most Hays flywheels are drilled with both the Borg & Beck and Long clutch patterns. All are precision-balanced to either Detroit (external) or neutral (internal) specifications (1.1 SFI-certified).
    Billet Aluminum Flywheels
    Machined from 7075 T-6 forged billet aluminum, these flywheels weigh 11, 14, or 15 pounds and are popular among many road racers and drag racers running light cars with large motors. The high-strength alloy surpasses material specs regarding strength and centrifugal distortion. All feature a replaceable steel or bronze heat shield and are drilled to accept either the Borg & Beck or Long clutch pattern. Ring gears are securely mounted with welded tabs riveted to flywheels to prevent spinning. Balanced to Detroit (external) or neutral (internal) specifications (1.1 SFI-certified).
    Billet Marine Flywheels
    Available steel or aluminum based on application, these flywheels are designed for engines adapted to marine use and machined to the same standards as other Hays flywheels.
    Application Chart
    For JEGS part numbers, add 490- to the beginning of Hays part numbers. Click chart to enlarge.

    Does Hays 12-240 fit your vehicle?

    Narrow Results

    1971 MERCURY COUGAR

    • EngineType: ALL
    • SubModel: COBRA JET

    1970-1971 MERCURY COUGAR

    • CC: 7030
    • Liter: 7.0
    • SubModel: XR-7
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1970-1971 MERCURY CYCLONE

    • CC: 7030
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1970 MERCURY CYCLONE

    • CC: 7030
    • Liter: 7.0
    • Aspiration: N
    • SubModel: SPOILER
    • Engine Vin: J
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1969 MERCURY MARAUDER

    • CC: 6391
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: X
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1972-1974 FORD COUNTRY SQUIRE

    • CC: 7539
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1976-1978 FORD F-150

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1972 FORD CUSTOM 500

    • CC: 7539
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1968-1970 MERCURY MARQUIS

    • CC: 6391
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1977 FORD F-350

    • Liter: 6.6
    • SubModel: XLT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1969-1971 FORD CUSTOM 500

    • CC: 6391
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1973-1974 MERCURY MONTEGO

    • CC: 7539
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975-1979 FORD F-250

    • Liter: 7.5
    • SubModel: RANGER
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1977 FORD F-350

    • Liter: 7.5
    • SubModel: XLT
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975-1976 FORD CUSTOM 500

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1977-1979 FORD F-150

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1966 FORD GALAXIE 500

    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1977-1979 FORD F-100

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1996 FORD E SUPER DUTY

    • Liter: 7.5
    • SubModel: CUSTOM
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1972-1973 FORD GRAN TORINO

    • CC: 7030
    • Liter: 7.0
    • SubModel: SQUIRE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1974 MERCURY MARQUIS

    • CC: 6555
    • Liter: 6.6
    • SubModel: BROUGHAM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1976 FORD LTD

    • Liter: 7.5
    • SubModel: BROUGHAM
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1966-1969 FORD FAIRLANE

    • CC: 6391
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1972-1974 FORD GRAN TORINO

    • CC: 6556
    • Liter: 6.6
    • SubModel: SQUIRE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1969-1973 FORD CUSTOM 500

    • CC: 7030
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1975 MERCURY MONTEGO

    • Liter: 7.5
    • SubModel: BROUGHAM
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1972-1974 MERCURY MONTEGO

    • CC: 6556
    • Liter: 6.6
    • SubModel: MX
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1978-1979 FORD F-250

    • Liter: 7.5
    • SubModel: RANGER LARIAT
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1970 MERCURY MARAUDER

    • CC: 6391
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1977 MERCURY COUGAR

    • Liter: 6.6
    • SubModel: BROUGHAM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1967 FORD FAIRLANE

    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • SubModel: 500XL
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1980-1982 FORD E-250 ECONOLINE CLUB WAGON

    • Liter: 6.6
    • SubModel: CHATEAU
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973-1974 FORD F-250

    • CC: 7539
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1973-1974 MERCURY COUGAR

    • CC: 7539
    • Liter: 7.5
    • SubModel: XR-7
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1965 FORD GALAXIE 500

    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • SubModel: XL
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1975-1976 FORD GRAN TORINO

    • Liter: 6.6
    • SubModel: BROUGHAM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971 FORD TORINO

    • EngineType: ALL
    • SubModel: SUPER COBRA JET

    1977-1978 FORD F-100

    • Liter: 6.6
    • SubModel: NORTHLAND
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1978 FORD E-250 ECONOLINE

    • Liter: 7.5
    • SubModel: NORTHLAND
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1968-1969 FORD LTD

    • CC: 6391
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1969-1973 MERCURY MARQUIS

    • CC: 7030
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1968 LINCOLN CONTINENTAL

    • CC: 7030
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1966-1967 MERCURY MONTCLAIR

    • CC: 6997
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1971 FORD MUSTANG

    • CC: 7030
    • Liter: 7.0
    • SubModel: GRANDE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1965-1966 FORD FAIRLANE

    • CC: 6997
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1968 FORD LTD

    • CC: 6391
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: X
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1975-1979 FORD F-350

    • Liter: 7.5
    • SubModel: RANGER
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1977-1978 FORD LTD II

    • Liter: 6.6
    • SubModel: BROUGHAM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1978 FORD E-100 ECONOLINE

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1970 MERCURY MONTEGO

    • CC: 7030
    • Liter: 7.0
    • SubModel: VILLAGER
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1972-1973 MERCURY MONTEGO

    • CC: 7030
    • Liter: 7.0
    • SubModel: MX BROUGHAM
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1997 FORD F-250 HD

    • Liter: 7.5
    • SubModel: XLT
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1966-1968 MERCURY MONTCLAIR

    • CC: 6391
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1971 MERCURY CYCLONE

    • CC: 7030
    • Liter: 7.0
    • SubModel: SPOILER
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1966 FORD FAIRLANE

    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 7.0
    • SubModel: 500XL
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1972-1974 MERCURY MONTEGO

    • CC: 6556
    • Liter: 6.6
    • SubModel: VILLAGER
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1980 FORD E-250 ECONOLINE

    • Liter: 7.5
    • SubModel: CHATEAU
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1992-1996 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 7.5
    • SubModel: CHATEAU
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1975-1979 FORD F-150

    • Liter: 7.5
    • SubModel: CUSTOM
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1979 FORD F-100

    • Liter: 7.5
    • SubModel: CUSTOM
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1980-1982 FORD E-250 ECONOLINE CLUB WAGON

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977-1982 FORD F-250

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1973 MERCURY MONTEGO

    • CC: 7030
    • Liter: 7.0
    • SubModel: GT
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1971 MERCURY CYCLONE

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972-1973 FORD GRAN TORINO

    • CC: 7030
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1962-1963 FORD RANCH WAGON

    • CC: 6654
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 406
    • EngineType: V8 ( 6.6 L / 406 )

    1977-1978 FORD F-350

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970 FORD LTD

    • Liter: 7.0
    • SubModel: BROUGHAM
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1974 FORD GRAN TORINO

    • CC: 7539
    • Liter: 7.5
    • SubModel: BROUGHAM
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1969-1979 LINCOLN CONTINENTAL

    • EngineType: ALL
    • SubModel: ALL

    1980 FORD E-250 ECONOLINE

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1968-1972 FORD F-250

    • CC: 6392
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1978 FORD BRONCO

    • Liter: 6.6
    • SubModel: NORTHLAND
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1982 FORD E-250 ECONOLINE CLUB WAGON

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1987-1991 FORD E-350 ECONOLINE

    • Liter: 7.5
    • SubModel: CUSTOM
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1970 FORD LTD

    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • SubModel: BROUGHAM
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1969 MERCURY MARQUIS

    • EngineType: ALL
    • SubModel: BROUGHAM

    1971 FORD RANCHERO

    • CC: 7030
    • Liter: 7.0
    • Aspiration: N
    • SubModel: GT
    • Engine Vin: J
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1965-1966 FORD GALAXIE

    • CC: 5769
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 352
    • EngineType: V8 ( 5.8 L / 352 )

    1962-1963 FORD GALAXIE

    • CC: 6654
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 406
    • EngineType: V8 ( 6.6 L / 406 )

    1966-1970 MERCURY MONTEREY

    • CC: 6391
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1971-1977 FORD CUSTOM 500

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1978 MERCURY MARQUIS

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1966-1967 MERCURY CALIENTE

    • CC: 6391
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1976 MERCURY MONTEGO

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1983-1991 FORD E-350 ECONOLINE CLUB WAGON

    • Liter: 7.5
    • SubModel: XL
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1971 FORD MUSTANG

    • CC: 7030
    • Liter: 7.0
    • SubModel: MACH I
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1962-1963 MERCURY MONTEREY

    • CC: 6654
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 406
    • EngineType: V8 ( 6.6 L / 406 )

    1962-1963 FORD COUNTRY SQUIRE

    • CC: 6654
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 406
    • EngineType: V8 ( 6.6 L / 406 )

    1970 FORD RANCH WAGON

    • CC: 6391
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 6.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: Y
    • CUI: 390
    • EngineType: V8 ( 6.4 L / 390 )

    1966-1967 FORD F-350

    • CC: 5769
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 5.8
    • SubModel: BASE
    • CUI: 352
    • EngineType: V8 ( 5.8 L / 352 )

    1975-1977 FORD CUSTOM 500

    • EngineType: ALL
    • SubModel: RANCH WAGON

    1968 FORD GALAXIE 500

    • CC: 6997
    • Fitment_Note: Flywheel Thicker Than Stock May Require Bellhousing Spacer
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1977 FORD F-100

    • Liter: 6.6
    • SubModel: XLT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1978 FORD LTD

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1982 FORD F-350

    • Liter: 6.6
    • SubModel: XL
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1983-1984 FORD F-350

    • Liter: 7.5
    • SubModel: XL
    • CUI: 460
    • EngineType: V8 ( 7.5 L / 460 )

    1970-1971 FORD TORINO

    • CC: 7030
    • Liter: 7.0
    • SubModel: GT
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1970 FORD RANCHERO

    • Liter: 7.0
    • SubModel: BASE
    • CUI: 429
    • EngineType: V8 ( 7.0 L / 429 )

    1977 FORD LTD II

    • Liter: 6.6
    • SubModel: SQUIRE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )
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