Honda TRX450 Foreman 92mm Big Bore Kit 470cc Cylinder Wiseco Piston Top End Rebuild

Premium 92mm Big Bore Performance Upgrade

Give your Honda Foreman new life with this complete TRX450 92mm Big Bore 470cc Top End Rebuild Kit, featuring a forged Wiseco piston, precision-machined cylinder, and a full Cometic top end gasket set. Designed for riders who demand power, reliability, and OEM-grade fitment.

🔥 Key Features & Benefits

Every component in this kit is engineered for top-tier durability and performance, ensuring a smooth, powerful, and dependable rebuild.

• Aftermarket 92mm big bore cylinder, bored & diamond-honed in-house
• Forged Wiseco 92mm big bore piston for maximum strength
• High-temperature piston rings for improved sealing
• Chrome wrist pin and precision-fit circlips included
• Cometic-made Wiseco top end gasket kit for a perfect seal

✅ Compatibility

This complete top end kit fits all Honda TRX Foreman 450 variants from 1998–2004.

• 1998 Honda TRX450 Foreman
• 1999 Honda TRX450 Foreman
• 2000 Honda TRX450 Foreman
• 2001 Honda TRX450 Foreman
• 2002–2004 Honda TRX450 Foreman (all sub-models)

❓ Frequently Asked Questions (FAQ)

• Q: Does this kit require machining?

  A: No. The cylinder is already bored and diamond-honed to match the piston.

• Q: Does the piston require race fuel?

  A: No. This Wiseco piston runs perfectly on pump gas or race gas.

• Q: Are gaskets included?

  A: Yes, this kit includes a complete Wiseco/Cometic top end gasket set.

• Q: Is there a warranty on the kit?

  A: Yes. This kit includes a 1-year limited warranty from BPRATV.

🌟 Why Buy from BPRATV? Trusted Performance Experts 🌟

At BPRATV, our promise is unwavering: The Best Parts. The Best Performance. The Best Price.
We deliver premium components, expert in-house machining, and unbeatable value for riders who demand the highest quality.
Trust BPRATV to keep your Honda TRX450 Foreman running at its best, every single time.

Upgrade your Foreman with real power — order your 92mm 470cc big bore kit today!

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. 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.