stroker life span?

My 416 has dyno time only (maybe 2-3 hours) and I pulled the heads to see how things looked. I was disappointed with cylinder wall wear from the short piston skirts. The KB pistones were not coated and I wish they were. The guy who built it said the sidewalls will look normal once the rings wear away the cross hatch. I dunno - it's a toy and will be flogged as bad or worse than my 340 was.

You can always sleeve a cylinder and this 73 block had one sleeved already. I have a 360 -1 block waiting in the wings of this stroker gets too worn out. All forged BTW. Dyno sheets only go to 6000 RPM with the ported eddy heads and hyd flat tappet purple 508 cam.