I'm going to take the time and break this down for everyone.
If you don't feel like reading my long post here is a quick summary.
If you had a built ac then it won't be as expensive because you will have already built your trans more then likely.
Going from frame to running buggy is expensive.
In my case I traded an 01 raptor 660 and an 89 fourtrax. So I only had $2200 in a 5 rib 1835.
Unfortunately I lost my rings and nearly trashed the whole motor doing it.
So instead of rebuilding it to a 1935 or bigger I decided this would be a perfect time for an ecotec swap.
Boy did I not know what I was in for.
I'm buying a 2.4 from phils bug shop in ky
Which runs at most $2700 it's a little more for me because I needed part of my rear cage fabbed up. And pedals.
That's not to bad considering you get your radiater, fuel pump, harness cut all the labor done mounts installed ecu flashed and various other things I'm sure I'm forgetting
Now what does get expensive is your transmission. Good lord the trans is brutal on costs. If I had 2k more dollars I could have bought a mendola trans.
I couldn't use my 5 rib because it wasn't strong enough to hold a eco even if I built it.
So..
6 rib. $600
weddle first and second gears. - $850
German superdiff. - $400
Reverse gear. - $60 (not necessary but why not if you are buying a used trans I wouldn't wanna lose reverse in my just put back together rig)
Torsional input shaft. - $170 (another controversial part but the r&d looks promising and I want this trans to have all the best parts I can get. "Buy once cry once")
930 kit. 800 from phils 900 if you want German axles.
2980 is my total for my trans. That's some crazy stuff!
More then my whOle motor and everything it needs!
So basically if you already have a good trans. There won't be much more money to spend on the swap.
But if you have to build one from scratch like I did your looking at about 5000 total.
But hopefully it will be worth it in the long run. I have faith. Lol.