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Although I usually agree with you dulcich and have used several of your articles as references but I disagree here. .001 or there about you can get by with a hone but much more than that and you are asking for trouble. Seen it too many times over the years and I am as low buck as anybody. In act any ridge that you can catch a finger nail on should be removed before piston removal if you plan to reuse the pistons to prevent ring land damage from rings catching on the ridge on removal. seen this happen many times.
Depends on if - Do you feel lucky today?



I'd much rather have a new bored out block too, but those numbers are for the guy that just cant afford any other option. Once knew a kid who re-ringed a Ford 390 with .013 taper in bores, and used chrome rings! Needless to say that one was a failure. I did a 215 olds for my 46 Willys Jeep in high school with .006 (best) to .008 (worst) knurled stock pistons, cast iron rings. Ran about 15 years on that build till the block froze one winter and cracked.
-dulcich