[grego37]

Are you going to run it at .060 over, or are you going to rebuild and bore it to the next size?

351w are usually thick enough to go that far, but personally I wouldnt chance it. What happens when you want to rebuild it , are you going .080 over?

On any block going past .030 I get it sonic tested, This process tells you exactally how thick each cylinder is and if its safe to go to the next bore size.

I'd find a nice std. bore block and bore it to .030.
and when you want to rebuild it down the road you can go to .040 and so on.....