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Heavy-Duty Flexplate
InfoVehicle Info Needed
HAYSPART NUMBER: 490-10-012

Heavy-Duty Flexplate

$17695
ShippingShips on Sep 14, 2026
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$9796
Heavy-Duty SFI Flexplate for 1957-1985 Small Block Chevy, Big Block Chevy, and 90 degree V6, 153-Tooth [Internally Balanced]

555-601070

Heavy-Duty SFI Flexplate for 1957-1985 Small Block Chevy, Big Block Chevy, and 90 degree V6, 153-Tooth [Internally Balanced]

$7899

Chevy
  • Internal Balance
    • Heavy-Duty Flexplate
  • 1955-1985 Small Block Chevy
  • Internal Balance
  • 153-Tooth
  • SFI 29.1 Approved
  • Zinc Dichromate Finish

    HAYS / MR GASKET 10-012 Features:

    Hays heavy-duty flexplates for high-performance and competition engines are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high-stall torque converters and today's high-RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the thicker Hays Flexplate handles the force. These H.D. flexplates are supplied with a ring gear that is securely welded in place and feature dual bolt patterns for flexibility in adapting to multiple transmission style torque converters. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.
    • S.F.I. 29.1 Certified
    • 153 Tooth Ring Gear
    • Internal Balance Chevy V6 Engines
    • Zinc Dichromate Plated
    • Heavy Duty
    • 0.030" thicker than the stock flexplate
    • Part TypeFlexplate
    BrandHAYS
    Package Height0.7
    Package Width12.7
    Package Length13.1
    Weight5.84 PG
    Part CategoryPerformance Parts
    Part FitmentSemi Universal
    Vendor Part Number10-012
    Package Qty1
    Package TypeEA
    No Questions
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