Banshee 465 Cub Motor Engine Kit Cases 68mm 10mm Stroker Cub Machined Crankcase

Yamaha Banshee 465cc Cub 68mm +10mm Stroker Complete Engine Motor Kit CPI

📖 Product Description

Build one of the baddest Yamaha Banshee big bore engines on the planet with this 465cc CPI Cub +10mm Stroker Complete Motor Kit. Centered around a CP Industries 68mm x 64mm Cub cylinder and a +10mm forged stroker crankshaft, this package delivers massive displacement, serious airflow potential, and a foundation built specifically for high-performance closed-course racing applications.

Unlike a basic top-end kit, this combination includes brand new OEM Yamaha-style crankcases machined specifically for the +10mm stroker crank, a complete Talon titanium stud package, billet clutch and cooling upgrades, genuine Moto Tassinari V-Force 4 reeds, SKF bearings, Wiseco Racer Elite Super Cub pistons, complete gaskets and seals, and the supporting hardware needed to assemble a serious Banshee Cub engine.

The included 22cc billet Cub domes provide a proven starting point, while alternate dome volumes are available for custom compression requirements. Cylinder porting is also available by request. For best results, BPRATV recommends having the bare CPI cylinder ported before final plating when additional port work is desired.

🔥 Key Features & Benefits

• 465cc Cub displacement using a 68mm bore and 64mm stroke combination for extreme Banshee performance
• Brand new machined crankcases prepared specifically to clear the included +10mm stroker crankshaft
• CP Industries Cub cylinder designed for high-output Yamaha Banshee racing engines
• +10mm forged stroker crankshaft provides the 64mm stroke required for the 465cc configuration
• Wiseco Racer Elite Super Cub forged pistons with nitrided coated rings and chrome wrist pins for demanding high-performance use
• Pro Design or Noss Machine billet cool head supplied with 22cc billet Cub domes
• Talon titanium hardware package includes complete Allen-head studs, 12-point flange nuts, titanium base nuts, and supporting hardware
• Genuine Moto Tassinari V-Force 4 reeds improve intake response and airflow capability
• Heavy-duty 8-plate clutch system uses street-bike fibers and stiffer springs for increased holding capacity
• Billet clutch basket and billet lockup provide additional strength and clutch control for high-horsepower combinations
• Titanium clutch pusher includes a thrust bearing and silicone nitride ceramic ball for reduced friction
• Billet water pump impeller and billet water pump gear upgrade critical cooling-system components
• SKF engine bearings are included for the water pump, transmission, shift cam, and wrist pins
• Complete gasket and seal package includes a Cometic one-piece base gasket for assembly
• Special-order configuration with optional cylinder porting and alternate dome sizes available by request

📦 Product Contents

• Brand new crankcases machined for +10mm stroker crankshaft clearance
• Talon titanium Allen-head complete stud kit
• Talon 12-point flange nuts for cases, cylinder, and head
• CP Industries 465cc 68mm x 64mm Cub cylinder
• Pro Design billet cool head
• 22cc billet Cub domes
• Wiseco Racer Elite Super Cub custom forged pistons
• Nitrided coated piston rings
• Chrome wrist pins
• Piston circlips
• +10mm forged stroker crankshaft assembly
• Genuine Moto Tassinari V-Force 4 reeds
• Billet clutch basket
• Heavy-duty 8-plate clutch kit
• Street-bike clutch fibers
• Stiffer clutch springs
• Billet clutch lockup - cover not included
• Titanium clutch pusher
• Clutch pusher thrust bearing
• Silicone nitride ceramic clutch ball
• Billet water pump impeller
• Billet water pump gear
• SKF water pump bearing
• SKF transmission bearings
• SKF shift cam bearing
• SKF wrist pin bearings
• Billet intake manifolds
• Intake manifold boots
• Complete engine gasket kit
• Complete engine seal kit
• Cometic one-piece base gasket
• Stud extenders
• Titanium 12-point cylinder base nuts
• Water jacket plugs
• Cylinder locating dowel pins
• NGK spark plugs

✅ Compatibility

Designed for Yamaha Banshee YFZ350 high-performance engine builds using the CP Industries Cub cylinder platform and a +10mm stroker crankshaft. This combination produces approximately 465cc displacement from a 68mm bore and 64mm stroke.

• Yamaha Banshee YFZ350
• CP Industries Cub-cylinder engine builds
• 68mm bore x 64mm stroke configuration
• Approximately 465cc displacement
• Cases are already machined for the included +10mm stroker crankshaft
• Additional supporting components such as larger carburetors, performance exhaust pipes, appropriate jetting, ignition setup, and proper tuning are required for the engine to operate correctly
• Intended for purpose-built closed-course racing applications

❓ FAQ

• Q: What displacement does this Banshee Cub kit produce?

  A: The combination uses a 68mm bore and 64mm stroke to produce approximately 465cc.

• Q: Are the crankcases already machined for the +10mm stroker crank?

  A: Yes. The included brand new crankcases are machined specifically for clearance with the supplied +10mm forged stroker crankshaft.

• Q: Can I order different dome sizes?

  A: Yes. The kit normally includes 22cc billet Cub domes, but other dome volumes are available. Contact BPRATV before ordering to discuss the compression setup for your build.

• Q: Is cylinder porting available?

  A: Yes. Porting is available at additional cost. For best results, BPRATV recommends completing the requested porting work on the bare cylinder before final plating.

• Q: Does the billet clutch lockup include a clutch cover?

  A: No. The kit includes the billet clutch lockup only; a lockup-compatible clutch cover is not included.

• Q: Is everything needed to make the engine run included?

  A: No. A build at this performance level requires additional supporting components such as appropriate performance pipes, larger carburetors, intake and fuel-system setup, jetting, ignition configuration, and professional tuning. Contact BPRATV for compatible options.

• Q: Is this kit normally in stock?

  A: This is an important special-order kit. Please contact BPRATV prior to purchase for current availability. Occasionally a complete kit may be on the shelf and ready to ship, but normal lead time is approximately 3–4 weeks depending on CPI production scheduling and any requested porting services.

• Q: What warranty is included?

  A: This special-order performance kit includes a limited 6-month warranty, subject to applicable warranty terms and the racing-use limitations stated below.

🌟 Why Buy from BPRATV? Trusted Performance Experts 🌟

At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price. We specialize in premium ATV and motocross engine components trusted by riders and builders nationwide. Our kits combine industry leading brands when applicable to deliver reliability and performance you can trust. Trust BPRATV to keep your Yamaha Banshee running at its best, every single time.

Build your ultimate 465cc Banshee Cub stroker engine with proven CPI, Wiseco, V-Force, SKF, titanium, and billet performance components!

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

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© BPRATV LLC 1-year limited warranty from the manufacturer for material or workmanship defects.* Due to the nature of high performance and racing applications, BPRATV LLC components are sold without express warranty or any implied warranty of merchantability or fitness for a specific purpose. BPRATV LLC shall not, under any circumstances, be liable for any specific, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue(s), cost of purchased or replacement goods, or claims of customers of the purpose, which may arise and/or shall result from sale, installation or use of these parts. Installation of these parts may void vehicle manufacturers warranty coverage and/or may cause the vehicle to be illegal in some locations.

This product is exempt from the emission standards and related 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]. This product is sold only for use in connection with EPA -certified, purpose-built, nonroad vehicles used solely for closed course, nonroad competition/racing and not used for any recreational purpose or on public highways or right of ways maintained by and open to the public.