Another issue I encountered with sleeving, is clearance with the power valve. On subsequent top end rebuilds, (which requires an overbore with a sleeve to get everything straight and true), you may break some rings if you do not get the power valve clearance adjusted for the overbore. Having done the sleeve option a couple of times, I would spring for the extra bucks for plating in the future. Too many problems like I listed above, plus sometimes jetting issues make it not worth the savings to me. Also, several shops I contacted with problems I was having would not even consider working on the motor after they learned it had been sleeved.