I did this on a 1650 (new rings only), and it worked out great. One thing you must do is run a hone through the bore! It allows the new rings to seat. If they don't seat, it'll blow oil worse than before. I actually left the crank in the block, but removed the rod, and piston. I cut a circle out of aluminum the same size as the bore, and rtv'd it at the bottom. This allowed me to run the hone w/fluid, and keep it out of the crankcase. Cleaned the bore really well, and put it all back together. When you first run the hone through it will show you how bad the bore is out of round. Its a gamble..... if you can't clean up all of the area that the rings travel in, then it needs to be bored.
I'm not saying this is the right way to do it, but it was fast, and relatively cheap, and it worked.
Oh, and make sure to plug that little hole that goes to the lifter galley :biggrin2.gif:
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