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 as high horsepower street, off-road, and race engines. Meets SFI Spec 29.1 For Racing Precision CNC Machined For Maximum Strength/Durability Aluminum Flywheels Feature Forged Steel Ring Gears CAD Designed To Provide Optimum Performance And Reliability Limited 90 Day Warranty Additional Attributes: GTIN: 00090127000694 Engine Balance: Neutral Finish: Steel Material: Steel SFI Certification: 1.1 Tooth Quantity: 164 WARNING CA Proposition 65: No Extened Information: Emissions : Legal US Life Cycle Status: Available To Order Packaging: Quantity of Each: Package UOM: Dimension: 14.5000 x 14.5000 x 1.5000 inches