660 Yamaha grizzly Into 450 Yamaha Kodiak Engine Swap

[fender13bender]

Just a quick question, I was wondering if anyone knows if a Grizzly 660 motor can be fitted into a Kodiak 450? My motor needs rebuilt and I figured I would see if that could be done instead. Basically will it fit, work, and can be used with the same transmission?

[DirtDemon]

What year is the Kodiak? Since the transmission and the motor are encased in the same body, you don't need to worry about the Kodiaks transmission, the Grizzly motor will have its own. As far as fitting the 660 motor in the Kodiak, where there is a will there is a way, people put 4cylinder streetbike engines into sport quads. The question is not so much will it fit and work, but can YOU do it.

[fender13bender]

Alright thanks, it's a 05 auto 450 4X4 IRS.

Could it be done fairly easily and I would like everything to work correctly, like my stock screen and such.

Where's the best place to find a motor?

[Ajmboy]

I had an '04 Kodiak, nic emachine. This is a first, but I think it may work. I would check out diagrams of bolt patterns, etc...first. Go to a site like BikeBandit and look at the two machine's engine diagrams. Bolt pattern is the first thing to look at.

[DirtDemon]

Ajmboy has a good point, those motors could be very similar, especially on the bottom end. I would search ebay for a good motor, just make sure that you only buy from people with an excellent sellers rep. As far as it being easy, unless the engines share the same engine case, no, it probably wont be easy. Most engine swaps require a good amount of planning, fabrication and you need to be able to improvise. You will most likely need to be able to weld, or know someone who can.