Update on 216 to 261 engine switch

[Phil Waterman]

Up date on earlier, thread concerning setting up 261 engine to go into BEAUTY my C60S.
Old threads http://www.mapleleafup.org/forums/se...der=descending

BEAUTY has been re-christened Exxon-Valdez oil leakage has suddenly jumped to 3 quarts per 150 miles, so it is time to do something. First step was to get the 261 out of the donor hulk http://www.mapleleafup.org/forums/at...=&postid=45453 which was the truck on the left believe it or not. Turns out I’ve found another engine with no serial number so it looks like it was a replacement engine, the transmission was trash but once cleaned up the engine looks really good. Preasure checked the water jacket to 30 psi held pressure over night so don’t think I have any cracks in the water jacket. Cylinder bore measures within .005 of the nominal 3.75 bore. It will need one exhaust seat resurface for rust damage; probably will replace all the exhaust valves on principal. Crank and rod bearings all look good. It has the front engine foot for the center engine mount.

Now to my question what problems have people run into putting the 235-261 into CMPs. I’ve reread all the related threads shown above. If my information on the 261 one are correct is should give nearly twice the horsepower and 1000 rpm more useable engine revs.