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Hays SFI Certified Billet Steel Flywheel - Big Block Chevrolet

Chevrolet Big Block 454 with 2-piece rear main seal, 168-tooth, 30lb, External Balance

PART# 10-235

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Hays steel flywheels are manufactured from certified billet material that will not break up under the stress of high RPM and severe punishment of racing. The 30 pound flywheel fits the 454 Chevy with 2 piece rear main seal and has 168 tooth ring gear. The flywheel is drilled for 10.5 in Borg & Beck or diaphragm and 11 in Borg & Beck, diaphragm or long style pressure plates. S.F.I. 1.1 certified. External engine balance. Other weights and applications available.


  • Billet Steel
  • S.F.I. 1.1 Certified
  • 10.5 In Borg And Beck Or Diaphragm
  • 11 In Borg And Beck Diaphragm Or Long Style
  • Weight 31 Pounds


# of Teeth168
Emission Code5
Engine BalanceExternal
Product TypeFlywheels
WarrantyLimited 90 Day Warranty
Part Number10-235



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.

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Warranty Information

Limited 90 Day Warranty: See Details
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