Honda 400EX 400X 87mm Big Bore Kit Valves Springs Stage 2 Hotcam +2 416cc Top End

The Best Big Bore Honda TRX400EX Top End Rebuild You will find.

• BPRATV 87mm Big Bore Cylinder (1 Year Warranty)
• Wiseco or Wössner forged piston
• Hi temp piston rings
• Chrome wristpin
• Circlips
• Cometic top end gasket kit
• Hotcams Stage 2 Camshaft
• Cam bearings
• Talon TITANIUMN cylinder stud kit
• HD timing chain
• Hardened steel intake and exhaust valves
• Valve springs and retainers
• Valve stem seals
• Runs on pump or race gas
• No case or head mods required
• 6-month warranty*

Compatibility

**Warranty: This product is NOT DIY. Over 99% of people in the world are not qualified to build an engine, and it is the responsibility of the person assembling and tuning the engine to make sure all the parts are correct and work properly. We ALWAYS STRONGLY recommend work be done by a qualified, experienced mechanic. For any warranty to be considered the part(s) in question must be sent back to us for inspection, NO EXCEPTIONS. We cannot warranty anything based on photos, emails, phone calls, what you read online alone, or what another mechanic says the problem is alone. Warranty does not cover any failure that is a result of improper installation, tuning, break-in, lack of maintenance, or misuse.