
PROX Steel Intake Valve Conversion Kit - Honda CRF450R (Manufacturer Part No: 28.SIS1403-2)
Specifically designed for motocross riders who are refurbishing their engine, this PROX conversion kit offers steel intake valves intended to replace the original parts on Honda CRF450R (PE05). Ideal for an engine overhaul after an intensive season or due to advanced wear, it allows for restoring the intake chamber to a robust configuration with components suitable for off-road use.
This kit is aimed at mechanics, preparers, and demanding riders who want reliable replacement intake valves for their CRF450R. Installation requires motorcycle mechanical skills (checking seats, valve clearance, possible balancing). For optimal longevity, perform the installation according to manufacturer recommendations and have any potential cylinder head resurfacing checked by a professional.