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Help me decide: Stihl 066 Magnum vs. MS660

Discussion in 'Chainsaw' started by hybridkarpower, Aug 2, 2010.

  1. hybridkarpower

    hybridkarpower ArboristSite Operative

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    Gents:

    Please give my your 2 cents on which one I should pick. I have an opportunity right now to buy either one (both used in excellent condition). I have never owned either one, but I can handle my MS441 very easily so an extra 2 lbs won't be a problem.

    Pro's & Cons of each model would be greatly appreciated.

    Thanks.
     
  2. GASoline71

    GASoline71 Mr. Nice Guy (Moderator)

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    Same saw... just different numbering.

    Gary
     
  3. Meadow Beaver

    Meadow Beaver Sideshowkickboxer

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    066 and 660 are pretty much the same, unless it's the old version with the metal flywheel, or the 066 redlight.
     
  4. Anthony_Va.

    Anthony_Va. XPW Fan Club

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    They are basically the same. I have heard that some of the older 066's had a little more power though. Don't hold me to that.

    I know the 066 I had before I bought my 660 was 16 years old this year and I swear it felt like it still had an edge over my new 660.
     
    longbar likes this.
  5. longbar

    longbar Mr. BigWood

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    I have also heard the 066 has alittle more power. I think it was in a thread a couple weeks ago.
     
  6. hybridkarpower

    hybridkarpower ArboristSite Operative

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    I was thinking somewhere along that line too !! Were the 066 built before EPA got their hands on the 2-cycles ?


     
  7. JimiLL

    JimiLL ArboristSite Operative

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    I believe the 066's without the decomp. lever had up to .8 more hp??
     
  8. SkippyKtm

    SkippyKtm The Lorax, my FIL rip...

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    The older 066 had a bit more power, primarily due to a less restrictive muffler. If you end up getting the newer MS660, You can always get one of these:
    http://www.baileysonline.com/itemdetail.asp?item=QS 1122 140 0800&catID=389
    Its a OEM dual port muffler cover, or you could save yourself some cash and do a muff mod yourself.
    Here's a thread by Tzed:
    http://www.arboristsite.com/showthread.php?t=61432&highlight=ms660 dual port cover
    and there's plenty of MS660 muff mod threads around, just do a search. Other than that the MS660 and the late model 066 were nearly identical.
    The old school 066 had some differences: the case is different, no decomp, it didn't have the poly flywheel, fuel tank was a bit smaller, there might be some more variations, but that's all that comes to mind.:)
     
  9. Bill Becker

    Bill Becker ArboristSite Member

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    I'd get both. (If you don't suffer from CAD yet this will help you on your way).
     
  10. tlandrum

    tlandrum Sponsor/ Saw Builder/husqvarna ,jonsered dealer

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    the ms660 would be newer than the 066
     
  11. longbar

    longbar Mr. BigWood

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    Yeah and in the chainsaw world newer isnt always better
     
  12. Wolfcsm

    Wolfcsm RETIRED SOLDIER

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    Which ever you choose, consider the dual port muffler cover. A very quick bolt on fix for the saw to breath better. Then you might want to send it off to Mr Snelling, or one of the other folks who mod saws here and make it onto a real monster. Lots of fun to run a 066 running at 14,000 rpm.

    Hal
     
  13. Wild Knight

    Wild Knight AboristSite Guru

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    I am told that the early years of the 066 had different port timings that gave it more power and lends itself to better power gains when modified. Otherwise, they are the same saw.
     
  14. Bounty Hunter

    Bounty Hunter Addicted to ArboristSite

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    An 066 in excellent condition? What are you waiting for?

    BUY IT! :cheers:
     
  15. Anthony_Va.

    Anthony_Va. XPW Fan Club

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    True that.

    I would let the condition of the saws, inside and out, be the only determining factor in my choice. Either of them will do you right.

    There is nothing different in them unless the 066 is the really old one.

    Parts are just as plentiful for either. Both just as easy to work on.
     
  16. 2000ssm6

    2000ssm6 Stihl User

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    I'd take a 066 if I could find one minty, my minty 660 will have to do for now.:D
     
  17. hybridkarpower

    hybridkarpower ArboristSite Operative

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    Now you've distracted me with your 1911 !! Is it a Kimber ?


     
  18. hybridkarpower

    hybridkarpower ArboristSite Operative

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    Thanks for all the good info guys !! 066 it is !!
     
  19. Anthony_Va.

    Anthony_Va. XPW Fan Club

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    I love the Colt gold cup but I have to say that IMO, the Kimber 1911's are better pistols.
     
  20. fishercat

    fishercat Addicted to ArboristSite

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    from my experience............

    066s seem more reliable and durable than 660s for some reason.
     

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