My wife and I got new ATVs last year, her the 450HO and me the 570. The 570 has larger tires, more displacement, and more power in seat of the pants dyno test. The 450HO has plenty for what she wants to do with it, just putt around we have a lot of land and tons of private and public trails out our back door.
Anyways, I never got any specifics about the 450HO motor. We have 2017 model years. I read somewhere a while ago, forget where, that earlier 450s were actually 570s de-tuned and that you could put a 570 CDI on the 450HO and get more HP, but not for 2017?? I was somewhat under the impression that 570 had DOHC while 450 had Single OverHead Cam. I haven't ripped into the motors to check! I also thought that the 450HO has a displacement of 500cc (I think that's what she registered it as).
If it's been hashed out before somewhere, could someone send me a link to read about these things? The specifics of the differences in the two motors, and even how they evolved to this point if that info is out there. Thanx in advance.
Anyways, I never got any specifics about the 450HO motor. We have 2017 model years. I read somewhere a while ago, forget where, that earlier 450s were actually 570s de-tuned and that you could put a 570 CDI on the 450HO and get more HP, but not for 2017?? I was somewhat under the impression that 570 had DOHC while 450 had Single OverHead Cam. I haven't ripped into the motors to check! I also thought that the 450HO has a displacement of 500cc (I think that's what she registered it as).
If it's been hashed out before somewhere, could someone send me a link to read about these things? The specifics of the differences in the two motors, and even how they evolved to this point if that info is out there. Thanx in advance.



