MS650/MS660 Differences

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Goicoechea

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I was wondering if anybody knew how the bottom ends compaired on the MS650 vs. the MS660. I had heard at one time that the 650 was just a 660 with a 460 piston/cyl on it. Didn't know if this was true or not so thought I would find out for sure.
 
Bottom end is the same, top end is different (but not a 460 top end).

according to dean not exactly. maybe they r the same case castings but some machine work is different. apparently the 650 case wil not accept the 660 bb piston w/o some trimming. i "think" the 660 will.
not just trying to be difficult but wouldnt want someone to try it under false pretenses. like me!
 
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The 650 is a 660 lower end with a redone 064 top end. The 066 top end will fit but the early prototype big bore kits had a few fit issues that Bailey's is fixing as we speak. Hopefully those will be out later this spring. I hope this clears up any confusion.
 
650 vs 660

Yes...but is there any reason to consider purchasing the 650 over 660 besides the nominal price difference ($100 +/-)? Or...is that the sole marketing advantage of the 650? I like the saw, just trying to undertand why not buy the 660? More HP, about the same weight, and not a great deal difference in price.
 
From what I understand and I could be wrong. There is a fleet # when it comes to pollustion and the EPA. Stihl figured that if they could sell some of the 650's for less thenat it would attract some buyers and help get their overall pollution #'s down. It also fills a preceived void in their line up by consumers. There are probably others in here that know better than I do.
 
From what I understand and I could be wrong. There is a fleet # when it comes to pollustion and the EPA. Stihl figured that if they could sell some of the 650's for less thenat it would attract some buyers and help get their overall pollution #'s down. It also fills a preceived void in their line up by consumers. There are probably others in here that know better than I do.

I was told by my dealer that Stihl wanted a saw in the 85cc class to compare with the 385 husky...Though the 385 fits my hands better,the 650 will easily out cut it..Both being bone stock.
 
You Like the 650 Then?

I was told by my dealer that Stihl wanted a saw in the 85cc class to compare with the 385 husky...Though the 385 fits my hands better,the 650 will easily out cut it..Both being bone stock.

Which is to say that you chose the 650 over the 660 in this case (If I'm not mistaken I thought I saw where you owned a couple of 066/660's). Just out of curiosity...why? And in retrospect...do you regard it as a good choice?

Thanks!
 
I was told by my dealer that Stihl wanted a saw in the 85cc class to compare with the 385 husky...Though the 385 fits my hands better,the 650 will easily out cut it..Both being bone stock.

I was told the 650 was brought out for emission purposes (EPA)
 
I own a 650 and have run a 660 many times. IMO I think the 650 is easier to run(smoother). And it seems to cut just as fast as the 660. When I was looking at the new saws, I realized that I pretty much would be using this saw for felling and flush cuts. And being they were so close I just saved myself a hundred dollars. BTW I payed 800 for mine with a 28 inch bar. I think it is cool that the only difference is the Jug and Head. So if it were to eat it one day I will just order 660 parts I guess.
 
Ditto!

Btw, I know of at least one 650 with a 660 top end on it (in Quatar), and I am pretty sure it was a direct fit, without any hazzle at all.

Oh, yeah, that guy. His posts frustrate me. :dizzy:

No kidding. That guy needs to find a different hobby with all of the problems he's had.
 
Which is to say that you chose the 650 over the 660 in this case (If I'm not mistaken I thought I saw where you owned a couple of 066/660's). Just out of curiosity...why? And in retrospect...do you regard it as a good choice?

Thanks!

I already had two 660's when I bought that 650..I bought it basically just because it was a new model and I was curious to try it out..It has held up well,but I doubt I'll ever buy another,I'd rather go ahead and shed the cash for a 660.
 
385

I already had two 660's when I bought that 650..I bought it basically just because it was a new model and I was curious to try it out..It has held up well,but I doubt I'll ever buy another,I'd rather go ahead and shed the cash for a 660.

And at almost a pound lighter for almost same cc's and horsepower, I'm getting the 385. And at the same weight as the 660 and less power with the 650, I'm getting the 660. I'm with ya there timberhauler!:rock: :D :laugh: :rockn:
 
From what I understand and I could be wrong. There is a fleet # when it comes to pollustion and the EPA. Stihl figured that if they could sell some of the 650's for less thenat it would attract some buyers and help get their overall pollution #'s down. It also fills a preceived void in their line up by consumers. There are probably others in here that know better than I do.

Our Stihl distributor said some of the same things. They said it served 2 purposes. Primarily so that they could have a saw in the 85cc class, but also cause it would help them meet the EPA standards. It's all based on an average of all the saws they sell, not on a model by model basis, so if by having the 650 (which is likely a bit cleaner than the 660 just by virtue of being a a few cc's smaller) they don't sell quite as many 660's it helps them meet the EPA standards and allows them to keep the existing 660 in the lineup as is longer.
 
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