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.
Specifications:
Description_ASC |
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. |
Description_DES |
Hays Billet Aluminum SFI Certified Flywheel - Big Block Chevrolet |
Description_MKT |
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. |
Description_FAB |
SFI-approved - legal for use in racing classes that require SFI certification |
Description_FAB |
6061-T6 billet aluminum construction for weight reduction and excellent heat dissipation |
Description_FAB |
Aluminum flywheels feature forged heat treated steel ring gears and replaceable 1045 steel friction surface attached with high-grade fasteners |
Description_FAB |
CAD designed to provide optimum performance and reliability |
Description_FAB |
For externally balanced engines |
Description_EXT |
1991-1997 454-502 Big Block Chevrolet, External Balance, 153-tooth, 1045 SFP, with bolt-on counter weight |
Description_INV |
OBS FLYWHEEL,91-UP BBC,42.54OZ EXT BAL,1 |
Application |
Chevrolet |
Material |
Aluminum |
Brand |
Hays |
Product Type |
Flywheels |
Special Offers |
Summer Sale |
SFI Approved |
Yes |
Warranty |
Limited 90 Day Warranty |
# of Teeth |
153 |
Center Bore (Register Diameter) |
2.486" |
Emission Code |
5 |
Engine |
Big Block Chevy |
SFI Certification |
1.1 |
Engine Balance |
External |
Length |
1.5000 |
Width |
14.2000 |
Height |
8.3000 |
Weight |
13.1500 |