Honda TRX450R 97mm OEM Bore +3mm Stroker Engine Kit (04–05)

🛠️ 97mm OEM Bore +3mm Stroker Engine Rebuild Kit – Honda TRX450R (2004–2005)

Boost your TRX450R’s power and reliability with this complete engine rebuild kit featuring an OEM 97mm cylinder paired with a +3mm stroker crank. No case mods required — this kit bolts right in and delivers a strong, torquey setup built for serious riding.

✅ Fits 2004–2005 Honda TRX450R models
✅ All parts are brand new and covered by manufacturer warranty

📦 Kit Includes:

• Brand New Crankcases – Factory spec replacements

• OEM 97mm Cylinder – Genuine stock bore replacement

• Wiseco 11.5:1 Big Bore Piston (M1112) – Runs on pump or race gas

• Hotrods +3mm Stroker Crankshaft with Rod – Increased displacement & torque

• Main Bearings – OEM-spec replacements

• Timing Chain – For precise valve timing

• Water Pump Rebuild Kit – Restore cooling reliability

• Complete Gasket Kit – Includes top and bottom end

• Complete Seal Kit – Includes crankcase and valve seals

• Heavy-Duty Stud Kit

🔧 Key Features:

• Bolt-on installation – No case machining required

• Designed for OEM bore + stroker performance

• Piston is compatible with pump or race gas

• Includes specific instructions for piston ring gap setup

• All parts are new in original packaging

• Backed by original manufacturer warranties

📦 Shipping Time:
Ships within 5–7 business days. Tracking sent upon shipment.

💬 Customer Support:
Available Monday–Friday, 7 AM to 4 PM PST, and our store chat is live 24/7 for quick help.

🔁 Return Policy (Quick Summary)

Not happy with what you received? No problem — we accept returns for a full refund, no questions asked.
Please inspect your order upon arrival and contact us immediately with any issues.

⚠️ Warranty Disclaimer

We strongly recommend installation by a qualified mechanic.
Failure due to improper install, break-in, tuning, or ring gap setup is not covered.
For warranty consideration, parts must be sent in for inspection — we cannot approve claims based on phone calls or photos alone.