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DOO-ADA2D 09-12-2002, 05:36 AM Hey guys, is there a big bore kit available for my 98' 583 MXZ? *I burnt the crank at the end of last season and figure if I'm going to spend the money I might as well go big. I've about gave up finding a 670 to put in it. *I thought the 583 worked Ok but would like some more torque. Any other suggestion on building the 583 would be appreciated. *Thanks, * * *Brent 800MXZ 09-12-2002, 06:43 AM How about an 809? It is a fairly simple install in that chassis, pipes are the only unique thing and they are made by Jaws, Crank Shop for the application. Maybe even a FIII 700 or FIII800 motor with the single pipe! mr670 09-12-2002, 10:15 AM DOO-ADA2D, how the long forgotten 617,that was a good torquey engine. rotaryvalvesrule 09-12-2002, 10:35 AM The 583 & 617 have a single exhaust port. The 617 is a stroked 583. In my opinion the 670 is a much better motor. Keep looking for a 670. There's a grass drag & swapmeet in Wausau Wi this weekend. You might be able to find one there if you live near by. TT670 09-12-2002, 01:01 PM I like the 670 myself but if you cant find one why not just port the case on the 583. Just doing the tunnel ports works real good on the 583. It makes a real strong, very reliable sled, the 583 is a very solid rotax motor. DOO-ADA2D 09-14-2002, 06:48 PM Thanks for the suggestions guys http://www.snowmobileworld-s2.com/forums/iB_html/non-cgi/emoticons/thumbs-up.gif *Does crankshop have a website? Who's a good rotax twin mechanic in Northern Michigan? rotaryvalvesrule 09-15-2002, 03:22 PM The Crank Shop doesn't have a website. I wish they did. K15004x4 09-19-2002, 11:20 PM There were about 3 670 motors for sale on snowest.com about 2 weeks ago. Probably still there. maluchm 09-20-2002, 07:57 AM </span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (DOO-ADA2D @ Sep. 14, 2002, 7:48pm)</td></tr><tr><td id="QUOTE">Who's a good rotax twin mechanic in Northern Michigan?[/b][/quote] You could PM MachZMan from this forum or give Chuck Walter at Twin Lakes Marina in Lewiston (989-786-2711) a call because both of these guys are good with Rotax motors. ZMachMan lives in Elmira/Alba just outside of Gaylord which is close to you. Or you could look here: http://www.dneperformance.com/ for some good information. RNM2399 09-20-2002, 09:32 AM I think I saw a 670 on Ebay yesterday. * * * * * * * * * * * * Ryan RNM2399 09-20-2002, 09:57 AM Found it: http://cgi.ebay.com/ebaymot....0502693 (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=1860502693) *Its at $820 right now which is pretty reasonable. * * * * * * * * * * * Ryan Sled Dogg 09-20-2002, 10:15 AM ZmachMan Also has a 2000 mxz600 complete motor and everything to install it. *Pm him and he'll get back in touch with you. Give him your number so you guys don't play tag. He can help you with everything and lead you in the right direction. My 809 is headed up to him this weekend. Caleb | ||