smooth in side cylinders

[Otis]

I'm sending my jugs out for some port work(finally). I figured that while it's apart, i might as well do a top end rebuild too.< First one on these cylinders, 5 years old

After taking the jugs off, i noticed that the inside is very smooth (no scratches, chips, nicks or dings)...

Does it need to be bored, or maybe just honed?

[ssanddemon]

You might have the guy doing your porting check the cylinder dimensions for you with a bore guage; he's probably got one. According to the book, new bore measurements are 64.00 to 64.02 mm, with a service wear limit of 64.10 mm. That's a fair amount to play with, so if you can get a good measurement with the bore guage, that will tell you the way to go. I would probably just plan on doing a bore to the next size up since you'll already be doing most of the work to put it new again anyway.