Yamaha Banshee 521cc Super Cub Cylinder 10mil Stroker Top End Racing Rebuild Kit

BPRATV CPI 521cc Cheetah Super Cub Cylinder Kit Yamaha Banshee 72x64

📖 Product Description

IMPORTANT – SPECIAL ORDER KIT -  Please contact us prior to purchase for availability, as we may occasionally have one on the shelf ready to ship if you need it fast. Otherwise, typical lead time is 3–4 weeks depending on CPI production schedule and any requested porting services. For best results, we recommend porting the bare cylinder prior to plating.

CP Industries Cheetah SUPER Cub Cylinder – the original and still the best Banshee mono-block cylinder on the planet. Forged by CP Industries in Lenapah, Oklahoma, USA and precision plated by Millennium Technologies in Plymouth, Wisconsin, this 521cc plated Super Cub cylinder delivers unmatched strength, airflow, and race-winning performance.

🔥 Key Features & Benefits

Engineered for serious performance builds, this mono-block twin design offers superior durability and massive power gains for competitive riding and racing applications.

• 521cc displacement (72.0mm bore x 64.0mm stroke)
• Mono-block twin cylinder design for maximum strength
• Forged in the USA and plated by Millennium Technologies
• CPI Part Numbers: CPI-7264-115, CPI-7264P
• Designed for extreme high-performance racing applications

📦 Complete Kit Contents

This 521cc Yamaha Banshee Cheetah Super Cub Top End Kit includes all critical components needed for a professional-grade build:

• CPI 72x64 plated mono-block cylinder
• BPRATV Custom Wiseco 72mm Pro-Lite Racer’s Choice Super Cub pistons
• Anodized piston domes with machined smooth heads (lightweight design)
• Wiseco piston rings, wrist pins, and circlips
• Heavy-duty wrist pin bearings (2)
• Cheetah cylinder water jacket plugs (4)
• Cheetah cylinder stud extenders (2)
• Titanium 12-point ARP-style nuts (2)
• Cometic Cheetah Super Cub 0.032" base gasket

⚙️ Engine Specs & Requirements

This high-performance setup requires supporting modifications and professional installation.

• Bore: 72.0mm
• Stroke: 64.0mm
• Rod Length: 115.0mm
• Requires crankcase boring and trenching
• Requires 10mm stroker crankshaft

🚀 Optional Upgrades & Build Options

Build the Banshee of your dreams. After purchase, our team will contact you to help customize your setup with the following optional upgrades (not included):

• Porting services: clean-up, dune/play, drag, tunnel porting, full race
• Super Cub heads: CPI or BPRATV billet (custom CC & dome options)
• Titanium fasteners, stud kits, dowel pins, and hardware upgrades
• Top end gasket kits: BPRATV, Cometic, or custom configurations
• +4mm stroker crankshafts (Hot Rods, Crank Works, WSM)
• Crank services: truing, welding, balancing with premium bearings
• Complete bottom end rebuild kits and transmission bearing kits
• Clutch kits and baskets: BPRATV, Wiseco, Hinson, Moose Racing
• Performance parts: carbs, pipes, reeds, ignition, cooling upgrades
• Complete engine rebuild service available

✅ Compatibility

Designed for all Yamaha Banshee models and years.

• Fits all Yamaha Banshee models
• Professional installation REQUIRED
• Not intended for beginner or casual builds
• Built strictly for high-performance/racing use
• All parts are top-of-the-line for reliability when installed correctly

❓ Frequently Asked Questions (FAQ)

• Q: Is this a bolt-on kit?

  A: No. Crankcase machining and a +10mm stroker crankshaft are required.

• Q: Who is this kit designed for?

  A: Professional engine builders and performance shops only.

• Q: Can I customize my build?

  A: Yes. We offer extensive upgrade options after purchase.

• Q: Do you carry additional Banshee parts?

  A: Yes, we carry everything Banshee—if you need it, we can get it.

🌟 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 high-performance Banshee builds and provide expert support, premium components, and unmatched customization options. Trust BPRATV to keep your Yamaha Banshee running at its best, every single time.

Build your ultimate 521cc Banshee today with the industry’s best Super Cub kit!

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

BRAPPPPPPPPPP!

© 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. This product is sold only in connection with machines that do not fall under state and/or federal noise or emission standards/regulations. Purchasers who/that purchase this product represent and warrant that the product is purchased only in connection with EPA -certified, emission-regulations-exempt and noise-regulations-exempt competition/racing vehicles as interpreted under applicable state and/or federal law.