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Athena P400485100016 478cc Big Bore Cylinder Kit (98mm Bore) - Forged Piston Performance Upgrade, Converts 450cc to 478cc, Compatible with Yamaha YFZ450 ATV, YZ450F, and WR450F

Description

UPGRADE YOUR RIDE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your 450cc four-stroke engine with the Athena Big Bore Cylinder Kit (Part No. P400485100016), a premium race-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 478cc powerhouse. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to deliver a substantial increase along the entire power curve while maintaining strict original-equipment reliability. This complete bolt-on kit comes loaded with everything required for a flawless installation—including a widened water-jacket aluminum cylinder, a high-performance forged piston coated with molybdenum, premium rings, wrist pin, clips, and a specific high-tightness multi-layer gasket set—allowing you to dramatically increase track and trail performance without requiring any machining or structural engine modifications to your factory crankcase.

Athena P400485100016 478cc Big Bore Cylinder Kit (98mm Bore) - Forged Piston Performance Upgrade, Converts 450cc to 478cc, Compatible with Yamaha YFZ450 ATV, YZ450F, and WR450F

Product form

SKU: P400485100016

UPGRADE YOUR RIDE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your... Read more

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$759.95

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    Description

    UPGRADE YOUR RIDE TO THE NEXT LEVEL OF PERFORMANCE Extract massive power, aggressive low-end torque, and unmatched acceleration from your 450cc four-stroke engine with the Athena Big Bore Cylinder Kit (Part No. P400485100016), a premium race-proven package engineered in Italy to seamlessly convert your factory setup into a high-revving, high-output 478cc powerhouse. Entirely cast from high-grade aluminum and treated with a specialized Motor-Nicksil (Nickel-Silicon) coating, this cylinder guarantees exceptional thermal dissipation, minimal friction, and optimal wear resistance to deliver a substantial increase along the entire power curve while maintaining strict original-equipment reliability. This complete bolt-on kit comes loaded with everything required for a flawless installation—including a widened water-jacket aluminum cylinder, a high-performance forged piston coated with molybdenum, premium rings, wrist pin, clips, and a specific high-tightness multi-layer gasket set—allowing you to dramatically increase track and trail performance without requiring any machining or structural engine modifications to your factory crankcase.

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    We ship to all lower 48 US states Your order will be packaged and shipped the same day you ordered as long as you order before 2:00 pm CST.
    Delivery takes between 2-4 business days. You will receive an e-mail after ordering with your tracking number so you can track the packages progress to your address.

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    Orders can be returned or exchanged within 30 days of receiving the package, provided they are in original resalable condition. If the product has been used or damage, a restocking fee may occur. Please see our Return Policy for further clarification.

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    You may contact us at sales@massdepot.com Our dedicated customer support will answer your questions or concerns within 24 hours of you reaching out.

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