225 piston rings thru bottom

Can someone verify if you can change piston rings thru the bottom of the block. I've had couple say it can be done but is there anyone with experience.
Why? You sure as hell ain't doin' it in a car w/o f**kin' it up, even if it was possible, and if it's on the stand You're avoiding what, the cost of a head gasket?
I'm sure somebody somewhere may have done it on a stand w/the crank out, but them pistons be looooong My friend, the bottom of the bores aren't squared or chamfered.
Really sounds like You're trying to avoid the inevitable,.........................