Honda 400EX 400X 89mm 440cc Big Bore Kit Valves Springs Hot Cams Stage 3 Hotcams

🔥 Honda 400EX/400X 440cc 89mm Big Bore Kit w/ Stage 3 Hot Cams & Ti Studs 🔥

🛠️ Product Overview

Transform your Honda 400EX or 400X into a high-performance beast with this complete 440cc Big Bore Kit. Featuring an 89mm big-bore cylinder, forged piston, Stage 3 Hot Cams, titanium head studs, hardened valves and springs, this kit delivers serious power gains without requiring any case or head modifications.

✅ What’s Included

• 89 mm Big Bore Cylinder – Wiseco or Wossner forged piston kit*
• Hi‑Temp Rings, Chrome Wrist Pin & Circlips
• Cometic Top‑End Gasket Kit with Big Bore MLS head gasket
• Hot Cams Stage 3 Camshaft for aggressive power delivery
• SKF Camshaft Bearings – upgraded OEM‑quality
• Talon Titanium Cylinder Stud Kit – ultra‑secure bolt pattern
• Heavy‑Duty Cam Timing Chain
• Hardened Steel Intake & Exhaust Valves
• Valve Springs & Retainers
• Viton Valve Stem Seals – top‑quality sealant
• Pump & Race Gas Compatible – no case/head mods required

🚚 Model Fitment

• Honda 400EX & 400X – All years 1999–2014

🏆 Why Heroes Choose This Kit

• Big Bore + Stage 3 Cam for huge RPM power
• Forged Piston & Hardened Valves for strength & longevity
• Titanium Studs & MLS Gasket ensure unbeatable head clamping
• Drop-In Fitment – no machining required
• High‑Quality OEM Replacement Components for reliability

❓ FAQs

• Can I use pump gas? – Yes, piston is designed for pump or race gas.
• Are case/head mods required? – No modifications needed; fits stock cases.
• Which piston brand will I get? – Wiseco or Wossner, based on inventory.
• What warranty is included? – 6-month warranty on the complete kit.

🌟 Why Buy from BPRATV?

BPRATV – The Best Parts. The Best Performance. The Best Price.
All items are new, sealed, and backed by high-quality warranties.
BRAPPPPPPPPPP!

Ignite your 400EX/400X—with a 440cc Stage 3 kit today! 🏁

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