Description

Yamaha Banshee 350 | Long Rod Top End Rebuild Kit

Replace your worn out top end with and upgraded +4mm long rod compatible top end from REV6. This kit is ready to use and requires the use of a +4mm long rod crankshaft. Long rod kits boost engine capacity to 379cc. Every part meets or exceeds OEM standards, ensuring a smooth fit, long service life, and confident performance. Installation is straightforward, and each kit is backed by our 1-year warranty for total peace of mind.

Includes:

• (2) New 64.45mm (.50 oversize) long rod moly coated piston kits (compatible with +4mm long rod heavy duty crankshaft)
• Upper rod bearings
• Top end gasket set

We also offer stock rebuild and big bore kits!

Experience and Support

REV6 brings years of experience rebuilding and upgrading Banshee engines, using advanced machining and testing to ensure every component performs under pressure. For full coverage details, visit our Warranty Policy. Need help choosing the right rebuild kit? Explore our Engine Rebuild Kit Guide. Need help installing the new crankshaft or want a complete performance build? Give us a call to discuss build and warranty options!

Have questions?

Visit our Help Center for shipping and installation info, or reach out through our Contact Page for one-on-one support. Financing is available through our Financing Options, and you can review our Core Program to understand how we handle core returns. For quick answers, see our FAQ section.

Thank you for choosing REV6 — the trusted name in Powersports engines and parts. We proudly support veterans and servicemembers with special discounts as our way of saying thanks for their service.

*Actual product may vary slightly from photo.