Yamaha Banshee 409cc 66mm Big Bore +4mm Stroker Engine Rebuild Kit Hot Rods ProX

Yamaha Banshee 409cc 66mm Big Bore Sneaker Stroker Complete Engine Kit

Maximum Power. Proven Value. Built to Win.

The BPRATV 409cc 66mm Big Bore Sneaker Stroker Kit is a complete top-to-bottom engine rebuild engineered to deliver massive horsepower and reliability for your Yamaha Banshee. Designed to compete directly with premium kits like Athena at a fraction of the cost, this setup delivers race-ready performance without compromise.

🔥 Key Features & Benefits

Every component in this kit is carefully selected and matched to ensure maximum durability, power delivery, and long-term reliability.

• BPRATV 66mm cylinders professionally bored and diamond honed for superior ring seal
• ProX Racing Parts 66mm pistons made in Japan with rings, pins, and clips included
• Hot Rods +4mm stroker crankshaft with heavy-duty rods, trued and welded ready to install
• Pro Design Cool Head with 22cc domes, head studs, and O-ring kit
• Complete gasket kit, engine seal kit, wrist pin bearings, and all critical rebuild components

🎁 Bonus Components Included

This kit comes with extra components included to save you time, money, and headaches during your build.

• BPRATV Talon Titanium Acorn Cap Nuts (Pro Design Cool Heads do not include nuts, so we have you covered)
• Set of 4 new cylinder dowel pins – a must-have replacement for any fresh engine build
• Brand new pair of NGK spark plugs to ensure quick, reliable starts
• Backed by a 1-year limited warranty for your peace of mind*

✅ Compatibility

This kit is engineered as a direct bolt-on solution for stock-case Yamaha Banshee engines using the proven “sneaker stroker” configuration.

• Fits Yamaha Banshee YFZ350
• Model years 1987–2006
• 409cc displacement with 66mm bore
• Designed for +4mm stroker crank without case modification
• Ideal for dune, drag, and aggressive recreational riding

❓ Frequently Asked Questions (FAQ)

• Q: Is this a complete engine rebuild kit?

  A: Yes. This kit includes everything from the crankshaft to pistons, gaskets, seals, bearings, head components, and bonus hardware.

• Q: Does this kit require case machining?

  A: No. This is a true sneaker stroker setup designed to fit stock Banshee cases.

• Q: Can I request different dome sizes?

  A: Yes. Other dome sizes are available upon request to match your fuel and riding setup. (Subject to availability)

• Q: Is there a warranty included?

  A: Yes. This kit includes a 1-year limited manufacturer warranty for peace of mind.

🌟 Why Buy from BPRATV? Trusted Performance Experts 🌟

At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price. Every kit is assembled with proven components, race-tested combinations, and unmatched value. Trust BPRATV to keep your Yamaha Banshee running at its absolute best, every single time.

Upgrade your Banshee today and experience true 409cc stroker performance.

BPRATV - The Best Parts. The Best Performance. The Best Price.

BRAPPPPPPPPPP!

© BPRATV LLC