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View Full Version : Whats the best motor to put in a 400ex???????????????????



Sporttrax400ex
01-14-2003, 07:55 PM
Does anyone know what would be the best out of a cr250,cr450, or a 440ex motor with cam, high comp piston, hinson clutch curtis or ct pipe, a carb, valves, and port and polish????????????:confused: :confused:

d-14 rider 27
01-14-2003, 08:39 PM
450 of course:D

Sporttrax400ex
01-15-2003, 07:39 AM
bump!

Dave400ex
01-15-2003, 02:32 PM
CRF450

Scott400EX
01-15-2003, 03:24 PM
depends on what kinda beast u want!! personally i would love to put a 650L engine in mine but thats a long way off!!

tkatka70
01-15-2003, 07:45 PM
drop a Polaris Trailblazer 250 in there. jk