Yamaha Banshee Athena 68mm Big Bore 4mm Stroker Engine Kit

🔥 Athena 68mm Big Bore 4mm Long Rod Engine Kit – Yamaha Banshee This is a high-performance big bore stroker kit designed to make real, reliable power. Featuring clean-up ported Athena cylinders, forged Wiseco pistons, and a +4mm Hotrods crank, this package is ideal for riders who want more torque, cooler temps, and long-lasting strength. ✅ Fits all Yamaha Banshee models and years✅ Built for power, reliability, and bolt-on performance 📦 Kit Includes: Athena 68mm Big Bore Cylinders – Clean-up ported for smoother flow Hotrods +4mm Long Rod Crankshaft with Rods – Stroker-ready setup Wiseco Forged Big Bore Pistons High-Temp Piston Rings Chrome Wristpins, Circlips, Wrist Pin Bearings Pro Design Billet Cool Head – Includes 22cc domes machined for 4mm crank Maxload and TZ Outer Crank Bearings Transmission Bearings + Water Pump Bearing NGK Spark Plugs Cylinder to Case Dowel Pins Complete Gasket Kit + Full Seal Kit Billet Water Pump Impeller with Bearing Clutch Pusher with Bearing Hi-Temp Ceramic Clutch Ball – Won’t weld to pushrod 💪 Why This Kit? Designed for use with a +4mm crank Ported Athena cylinders flow better and hit harder Billet upgrades and ceramic clutch ball = less wear, more durability Domes matched to crank spec for proper squish All parts brand new in factory packaging No machining required – Bolt-on ready 📦 Shipping Time:Ships within 5–7 business days. Tracking provided at fulfillment. 💬 Customer Support:Reach us Monday–Friday, 7 AM to 4 PM PST, with live store chat 24/7. 🏁 Why Buy from Us? Banshees are our specialty. We stock more Banshee parts — from Cub and Super Cub cylinders to budget builds — than anyone online. Whether you're building mild or wild, we’ve got you covered.