Go for the 400 Sport!Even if you have to rebuild the motor you will have a great machine that will do anything you want and still show the "big4 guys" a trick or two.
BTW you can set one of these clutches up wher ther is no way a manual shift can out do it and ride wheelies all day long.

 

Do you know for a fact that the 400 sport will bring the front end off the ground if I want ? How about keeping up with say a 400 ex ?
Like what I said, it has been just bored out 40 cc , and with less that 5 hours on it, he said that antifreeze is getting into the exhaust . He got a new 500 predator and does not want to put anymore money into it . He also said with all the aftermarket engine and suspension parts he says that it will keep up with his stock predator . Do you beleive this ?
Thanks,
D.

 

I would second the 400EX.

 

The 440 "big bore kit on the 400s aint all that.But if you got a stock used cylinder got it ported,mill the head good brand of pipe(HPD,RcR,Hotseat,Aaen,Dynoport these companies design their pipes for a CVT tranny un like DG and FMF) and a matching clutch kit the 400 guys wont come close to keeping up.My last 400 had the Hotseat speed kit and would hang with the modded 660 raptors and come close to the piped Banshees.And on the wheelies the first time I rode that 400 it threw me off the back(wasnt expecting that kind of power).
What I am trying to say is the Polaris 400 is the MOST under rated quad ever made.