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Hays Billet Steel 168-Tooth Flywheel 10-245 Flywheel, Steel, 168-Tooth, 40 lb., External Engine Balance, Chevy, Big Block, 454, Each

SKU: HAY10-245

Flywheels

Hays Billet Steel 168-Tooth Flywheel 10-245 Flywheel, Steel, 168-Tooth, 40 lb., External Engine Balance, Chevy, Big Block, 454, Each

SKU: HAY10-245

Flywheels
A$1,052.71
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Description

Hays steel flywheels are engineered to handle extreme-duty applications and designed to take the punishment of today's high-horsepower engines. They are CAD-engineered and precision CNC-machined to strict tolerances. Available in weights up to 50 lbs. for specialized applications, most Hays flywheels are drilled with both the Borg and Beck and Long-style clutch patterns. Upgrade to a precision-machined and engineered Hays billet steel flywheel.

Features include:

* SFI-approved--legal for use in racing classes that require SFI certification
* CNC-machined from certified billet steel for maximum strength and durability
* CAD-designed for optimum performance and reliability
* Offered in internal, external, or neutral (zero) balanced versions
* Available for a wide variety of engines

Note: When choosing a flywheel, remember that a heavier flywheel stores more energy. A heavy car requires more power (or inertia) to launch without bogging the engine and needs a heavier flywheel. Lighter flywheels create less inertia at launch, but will accelerate faster through the gears.

Part Type

Flywheels

Data: v4.2 - Upd: 2026-10-14 09:07:04

Specifications

Product Attributes - Brand
Hays
Product Attributes - Manufacturer's Part Number
10-245
Product Attributes - Part Type
Flywheels
Product Attributes - Product Line
Hays Billet Steel Flywheels
Product Attributes - UPC
084041102459
Product Attributes - SFI Rating
SFI 1.1
Product Attributes - Ring Gear Tooth Quantity
168-tooth
Product Attributes - Crankshaft to Flywheel Bolt Quantity
6-bolt
Product Attributes - Pressure Plate Style
Borg & Beck/Diaphragm/Long
Product Attributes - Rear Main Seal Style
2-piece
Product Attributes - Flywheel Diameter
14.000 in.
Product Attributes - Flywheel Material
Billet steel
Product Attributes - Engine Balance
External
Product Attributes - Weight
40.000 lbs.
Product Attributes - Replaceable Friction Surface
No
Product Attributes - Marine Use
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Flywheel is thicker than stock, may require bellhousing spacer. Lakewood bellhousing will eliminate interference. Flywheel bolts are included.

Reference Information

Brand Name/s Hays
StreetFX SKU hay10-245
SFX Item ID 5093371
Supplier Item Code 5093371
Manufacturer SKU 10-245
Manufacturer UPC N/A
Alternative References 168-Tooth

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1990
    Engine TypeV8
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1970
    Ending Year1971
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1970
    Ending Year1971
    Engine TypeV8
    Liter7.4
    CID454
    CC7441
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeV
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeW
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    Liter7.4
    CID454
    CC7441
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeV
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1973
    Ending Year1973
    Engine TypeV8
    Liter7.4
    CID454
    CC7441
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeX
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeX
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeY
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1974
    Ending Year1974
    Engine TypeV8
    Liter7.4
    CID454
    CC7441
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeY
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeY
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1970
    Ending Year1971
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1970
    Ending Year1971
    Engine TypeV8
    Liter7.4
    CID454
    CC7441
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeV
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeW
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    Liter7.4
    CID454
    CC7441
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeW
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1973
    Ending Year1973
    Engine TypeV8
    Liter7.4
    CID454
    CC7441
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeZ
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeL
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeZ
  • MakeCHEVROLET
    ModelBROOKWOOD
    SubmodelBASE
    Beginning Year1970
    Ending Year1971
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
  • MakeCHEVROLET
    ModelBROOKWOOD
    SubmodelBASE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeV
  • MakeCHEVROLET
    ModelBROOKWOOD
    SubmodelBASE
    Beginning Year1972
    Ending Year1972
    Engine TypeV8
    Liter7.4
    CID454
    CC7439
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeW
  • MakeCHEVROLET
    ModelC10
    SubmodelBIG TEN
    Beginning Year1978
    Ending Year1979
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeS
  • MakeCHEVROLET
    ModelC10
    SubmodelBIG TEN
    Beginning Year1980
    Ending Year1980
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeW
  • MakeCHEVROLET
    ModelC10
    SubmodelCHEYENNE
    Beginning Year1975
    Ending Year1975
    Engine TypeV8
    Liter7.4
    CID454
    Engine FamilyChevy big block Mark IV
    Engine Size7.4L/454
    Engine VIN CodeZ

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