Athena 68mm Big Bore Race Cylinder Kit – Yamaha Banshee 350
Athena 68mm Big Bore Race Cylinder Kit – Yamaha Banshee 350 (1987–2006)
🛠️ Take your Banshee to the next level with the Athena 68mm Big Bore Race Cylinder Kit. This complete package increases displacement to 392cc and is engineered for serious riders who demand maximum performance from their two-stroke machine.
✅ What’s Included
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(2) Aluminum cylinders with nickel-carbide coating
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(2) Aluminum cylinder heads with removable bronze domes
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High-performance, hard anodized Athena power valves (OEM valves not compatible)
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(2) Cast lite flat-top pistons with rings, clips, and pins
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Complete Athena top-end gasket set with seals and hardware
📦 Fitment
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1987–2006 Yamaha YFZ350 Banshee
Fits all standard and special edition Banshee 350 models.
🛡️ Warranty Info
Athena products are covered against manufacturing defects. This warranty does not apply to normal wear, improper installation, or damage caused by lack of maintenance or racing use.
🔑 Key Features
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Displacement boost to 392cc with 68.00 mm bore
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Lightweight aluminum cylinders with nickel-carbide coating
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CNC-machined cylinder heads with removable bronze domes
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Specially designed Athena race power valves
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Includes complete piston kits and top-end gaskets
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Designed for high-performance two-stroke ATV applications
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.