Join Date: Mar 2012
Location: Kingman, AZ 86409
From everything I've seen, the stroke is Different on the 550, 650, and 700. the cylinder makes up the difference in CC's, the base of the cylinder is where the problem is found. Some early cases would not allow a larger cylinder to be used. Not sure, but I suspect a case could be machined to take a larger cylinder. Head bolts, timing chain, cam, and head all swap between models. Switching cranks would be great if you can find a piston that has the right pin height. So a 650 piston would not work on a 550, or 700 crank. When I built my 750 big bore, I looked at using a 550 Crankshaft, and rod to gain more CC's, nobody makes a piston that would fit that combination, and a one off would be to much money.
2009 700EFI XTX, , AC Winch, 2010 Dust Shield EPI Sport Utility Clutch Kit , Street Legal, Cage chopped 2 ", Aluminum Diamond Plate Trim, Relocated Factory Bladders with covers, 5 Pt. Harness installed, Bed Tiedown System, Scat Pro-Car Seats, Secondary Battery installed, Oil Pressure, Oil/CVT Temperature, Volt Meter & Water Temp Gauges installed with Dash Plate, Bighorns, ITP Black 212 Wheels. Tonneau cover. 750 Big Bore Kit, Web Cam, and Rocker Arms.
Either - Dick or RD
Last edited by Fairmont79; 03-02-2015 at 04:54 AM.