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OEM & Performance ATV, UTV & Dirt Bike Parts for Yamaha, Honda, Polaris, Can-Am & More — Shipped Fast from BPRATV
OEM & Performance ATV, UTV & Dirt Bike Parts for Yamaha, Honda, Polaris, Can-Am & More — Shipped Fast from BPRATV

Banshee 66mm +2mm 370cc Cylinder Pair Wiseco Pistons Gaskets Top End Upgrade Kit

by BPRATV
Save 41% Save 41%
Original price $799.99
Original price $799.99 - Original price $799.99
Original price $799.99
Current price $469.99
$469.99 - $469.99
Current price $469.99
Banshee 66mm +2mm 370cc Cylinder Pair Wiseco Pistons Gaskets Top End Upgrade Kit

Banshee 66mm +2mm 370cc Cylinder Pair Wiseco Pistons Gaskets Top End Upgrade Kit

Rev up your Banshee with this complete top end rebuild kit! This powerful package transforms your 350cc beast into an extreme 370cc monster.

  • NEW BPRATV 66mm cylinders bored and diamond honed at the factory for max performance (1 Year Warranty)
  • Forged Wiseco pistons increase displacement to 370cc (Pair) - Includes rings, wristpin, and circlips
  • Heavy duty wrist pin bearing (Pair)
  • Set of 4 New Dowel Pins - Time to replace those old ones!
  • Complete top end gasket kit for a fresh seal
  • NGK spark plugs ensure easy starting

*Requires Cool Head Style Cylinder Head with 66mm Domes or Stock Head machined to 66mm*

*PORTING SERVICE AVAILBLE*
- Clean up porting, Stage 1-4, Drag Porting, +4mil Porting for Stroker Cranks
- Porting service requires additional handling time. Please consider this before purchasing. 😀

With this complete kit, you'll boost your Banshee's horsepower and torque for insane acceleration. The larger 66mm cylinders and Wiseco pistons add those extra cc's you've been dreaming of. Your friends will be amazed when you blast past them on the trails. Dial in the perfect air-fuel mixture with the included NGK plugs. And you'll avoid future leaks thanks to the complete top end gasket set.

If you want to unlock your Banshee's full potential, this is the kit to get. You'll transform your wheeler from stock to superstar in a weekend.

BPRATV - The Best Parts. The Best Performance. The Best Price.
BRAPPPPPPPPPP!
2GU-11311-00-00, 2GU-11321-00-00,2GU-11181-00-00, 2GU-11631-00-94, 2GU-11610-01-00, 4L0-11633-00-00, 93450-17129-00, 93310-316D6-00, 3GG-11351-02-00, BAN-CY370, 513M06600, 810812, BR8ES, B1005, Athena, Athena SPA, Banshee Cub, Cheetah Cub, Yamaha OEM, S410485301023, S410485301024, P400485100024

PROFESSIONAL INSTALLATION REQUIRED

DO YOU NEED THIS ITEM INSTALLED? WE HAVE YOU COVERED! CONTACT US FOR DETAILS.

REPAIR SHOPS AND DEALERS: CONTACT US TO SET UP AN ACCOUNT FOR WHOLESALE DISCOUNTS.

BPRATV: Over 20 Years of Excellence in Parts & Service
Upland, CA | Monday – Friday, 7 am – 4 pm PST
WE SHIP WORLDWIDE MONDAY THROUGH FRIDAY | ¡HABLAMOS ESPAÑOL!

Payments: Credit Card, PayPal, Venmo, Cash App, and In-Person (Cash/Check once cleared).


NOTICE REGARDING PHOTOS: Product photos used in our listings are for example only to show the high quality of our components. You will receive the correct quantity, size, and fitment of bearings, titanium fasteners, nuts, and bolts for the specific kit listed.

BEARING NOTICE: In some cases, you may receive SEALED bearings. If your application requires an OPEN bearing, the seals can easily be removed.

EMISSIONS & RACE USE ONLY: This product is exempt from emission standards and requirements of 40 C.F.R. § 1051 as provided by 40 C.F.R. § 1051.620, and California law [e.g., vehicle code §§ 27156 and 38391]. Sold ONLY for use with EPA-certified, purpose-built, nonroad vehicles used solely for closed course, nonroad competition/racing. Installation may void vehicle manufacturers' warranty and/or may be illegal in some locations.

WARRANTY & LIABILITY: © BPRATV LLC 1-year limited warranty from manufacturer for material/workmanship defects.* Due to the nature of high performance and racing, components are sold without express/implied warranty of merchantability or fitness for a specific purpose. BPRATV LLC shall not be liable for specific, incidental, or consequential damages (loss of property, equipment, profits, or revenue) resulting from sale, installation, or use of these parts. This product is NOT DIY; we strongly recommend work be done by a qualified, experienced mechanic.

RETURNS: Returns accepted within 30 days for items 100% complete, brand new, and in original packaging. Items installed or prepped (lubricated/sealed) are ineligible. For warranty consideration, parts MUST be sent back for physical inspection. No exceptions. We do not warranty based on photos, emails, or third-party assessments.

SPECIALTY WARRANTIES: Cub Cylinders: Lifetime warranty for original owner via BPRATV/Millennium Technologies inspection; covers cylinder only. Titanium Fasteners: Failure during use results in replacement only. Neither warranty covers improper tuning, installation, maintenance, or misuse.

INTERCHANGEABLE PARTS: We may substitute parts of equal quality from different manufacturers to prevent backorder delays. Prices and listings subject to change without notice.

FEEDBACK: We work hard for your positive feedback. Please contact us before leaving feedback if you have any issues so we can assist you.

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