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Hays Steel SFI Certified Flexplate - Big Block Ford

1966-1970 332-428 FE and 1968-1978 429-460 Big Block, 164 Tooth, Neutral Balanced, Ford and GM Converter Bolt Patterns

Part # 40-517 Be the first to write a review

Hays Steel SFI Certified Flexplate - Big Block Ford

Not Available

5

Emissions

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.

See Emissions Details
Hays SFI Approved heavy-duty flexplates are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high-stall torque converters and high-RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the 4mm thick center plate utilized on a Hays flexplate handles the brute force. These flexplates are supplied with a precision double welded ring gear and feature multiple engine and transmission bolt patterns. All Hays flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.

Features:

  • SFI-approved – legal for use in racing classes that require SFI certification
  • Flexplate features a precision double welded ring gear
  • Has 4mm thick center plate to resist cracking near crankshaft flange
  • Zinc-dichromate plated to resist corrosion
  • CAD designed to provide optimum performance and reliability
  • Available in Internal or External balanced versions
  • Applications offered for a wide variety of engine and transmission bolt patterns

About Hays

Looking for clutches, flywheels, flexplates, or torque converters? Shop the selection at Holley.com to find what you need.

# of Teeth164
ApplicationFord
Bolt PatternFord 11-7/16"
GM 10-3/4"
GM 11-1/2"
Brand Hays
Centerplate Thickness4 mm
Discount$$$$
Discount PercentageOver 75%
Emission Code5
EngineFord FE
Engine BalanceInternal
FinishSilver
MaterialSteel
Product TypeFlexplates
SFI ApprovedYes
SFI Certification29.1
Warranty90 Day
UPC090127062487
Part Number40-517
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.
90 Day: See Details
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    *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.