Banshee 521cc Supercub Engine Kit – CP Cylinder, +10mm Crank

🛠️ 521cc Supercub Engine Kit – Yamaha Banshee (All Years & Models)

Complete 521cc engine kit for Yamaha Banshee using a 72x64mm CP Industries Supercub cylinder and a +10mm stroker crankshaft. Designed for high-output builds requiring crankcase trenching and premium supporting components.

✅ Fits all Yamaha Banshee models and years
✅ Requires crankcase machining for 72mm Supercub cylinders
✅ All parts are brand new and include manufacturer warranties

📦 Kit Includes:

• CP Industries Supercub Cylinder – 72mm x 64mm (Nikasil Plated)

• Wiseco 72mm Racer Elite Forged Pistons (Moly-Coated)

• Nitrite Coated Piston Rings

• Chrome Wristpins + Circlips

• Crankworks +10mm Stroker Crankshaft – 115mm Rods

• Complete Gasket Kit + Cometic One-Piece Supercub Base Gasket

• Crankcase Oil Seal Kit

• Supercub Cool Head O-Ring Kit

• Talon Heavy-Duty Clutch Kit

• Titanium Clutch Pusher with SKF Thrust Bearing

• Silicon Nitride Ceramic Clutch Ball

• Moto Tassinari V-Force 4 Reed Valves

• Wrist Pin Bearings

• TZ and Maxload Outer Crank Bearings

• Transmission Bearings + Shift Cam Bearing

• Water Pump Bearing + Billet Water Pump Impeller & Gear

• Maxlock Grade 5 Titanium Top End Stud Kit

  • Includes Allen Head Studs & Nuts (Cylinder-to-Head & Cylinder-to-Case)

• Titanium Extended Cylinder Studs – No extenders needed

• Titanium 12-Point Base Nuts

• Water Jacket Plugs

• NGK Spark Plugs

⚠️ Requirements & Notes:

• Crankcase trenching required to use this cylinder setup

• Designed to run on 100+ octane fuel

• Requires larger carbs, Supercub head, and appropriate exhaust (sold separately)

• We offer crankcase trenching and all necessary supporting parts upon request

• 6-month manufacturer warranty included*

📦 Shipping Time:
Ships within 5–7 business days. Tracking information provided after fulfillment.

💬 Customer Support:
Contact us Monday–Friday, 7 AM to 4 PM PST, or use our 24/7 live chat.