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1 de feb. de 2008 · The 670 has been modded for years and responds to mods extremely well and reliably. There are still lots of mod 670's running very strong all over the place. Not many mod 583's. The 583 is a torquey strong running reliable engine. Nothing wrong with it at all.
1 de may. de 2018 · Once we hit 55-60 mph though the 583 seemingly vanishes behind my 670. Now I've heard the 583 has a better rounded out powerband having great low end grunt and tons of pull in the mid-range, while the 670 will just chew through the snow on the low end and only really start to pull hard above 50 mph... but is it really that drastic?
29 de dic. de 2012 · If you put 670HO 132mm rods, on a 583 64mm stroke crank which uses 125mm rods normally. Your adding back, 132-125 = 7mm. 64mm + 7mm = 71mm. So, using 670 (78mm+) Cylinders, 670 Rods (132mm), and a 670 Piston, should mean, you need to use a 1mm thicker base gasket, to make it all come out right.
1 de nov. de 2007 · I swapped a 1997 skidoo formula 500 engine with a 1994 skidoo formula z (583) engine. I am wondering that if there is anything else that I should change from the 500 to the 583. I am having a hard time starting it every once an a while.
22 de sept. de 2006 · Hey i did a 583 to 670 engine swap in my 97 summit just a couple weeks ago. Youll need 40 or 44mm carbs and the flywheel, stator, trigger coil, and clutch. The 583 and 670 exhaust are the exact same.
12 de nov. de 2002 · Both engines are pretty reliable. The 670 and the 583 are the same type of engines, rotory valve. If you are looking for a summit and will be riding in lots of powder or up some big hills, you might wanna get a SummitX 670 for the added power.
18 de feb. de 2011 · I have a great running Formula Z 583 sled that has less than 2500 miles on the motor and cold compression is at 120 both sides. I also have a 1999 Formula Z 670 with no motor in it.
