Originally Posted by bobby66
I think the grit will depend on what type of rings you will be using. Some will require a finer finish than others.


You’re right, I finally found a good site with info. Cast rings 120 grit and buy the hone for the size of cylinder you have. If you have a 4” cyl buy a 4” hone, the hone is compensated for size and will actually be a 5” etc. I think they said 240grit moly rings.
I think I’ll buy the lube too rather than using just engine oil..

Thanks for your reply.

66Scar