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's high horsepower street, off-road, and race engines.
Features: SFI-approved – legal for use in racing classes that require SFI certification. Choose precision CNC-machined 1045 billet steel for maximum strength and durability or 6061-T6 billet aluminum construction for weight reduction and excellent heat dissipation. CAD designed to provide optimum performance and reliability.
Hays 12-540 Billet Steel SFI Certified Flywheel, Small Block Ford Hays
Hays 12-540 Billet Steel SFI Certified Flywheel, Small Block Ford
Sku # 42512540
Mfr. Part # 12-540
Condition
New
Brand
Hays
Sold
Each
Details
Info

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's high horsepower street, off-road, and race engines.

Features:

  • SFI-approved – legal for use in racing classes that require SFI certification
  • Choose precision CNC-machined 1045 billet steel for maximum strength and durability or 6061-T6 billet aluminum construction for weight reduction and excellent heat dissipation
  • CAD designed to provide optimum performance and reliability
    • Installation Tips

    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.

    This item is being shipped to you directly from the manufacturer and is subject to an increased handling time. Delivery estimates that include the handling time are displayed on the "Shipping and Payments" tab.
    Specs
    Sold in Quantity
    Each
    Engine Balance
    External
    Weight
    28
    SFI Rating
    1.1
    Flywheel Material
    Billet steel
    Replaceable Friction Surface
    No
    Outside Diameter
    13.28
    Pressure Plate Style
    Borg & Beck/Metric
    Crankshaft to Flywheel Bolt Quantity
    6-bolt
    GTIN Code
    084041125403
    MFG. Part #
    12-540
    Notes
    Flywheel bolts are included.
    Tooth Count
    157-tooth
    Tech Support
    We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through eBay Messaging and a knowledgeable Speedway Motors team member will be happy to help.
    About
    Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 72 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.