340 Heads on a 273 Block

I would like to replace the stock heads on my 273 V8 with a set of 340 heads.
However, it seems that the tech books say that this would be a close
call because of the valve-to-cylinder wall clearance issues.
The stock 273 cylinder has a 3.63 inch bore and and the 273 heads have a 1.78 intake and 1.50 exhaust valves. The smallest valves on the 340 are 1.88 intake and 1.60 exhaust.
My 273 block was bored .030 on the rebuild.

QUESTION: Does anyone know if the 340 head with 1.88/1.60 valves has
enough valve-to-cylinder clearance when bolted to a 273 block bored .030 over to operate properly ???.

As always guys, any info is greatly appreciated.

GLJPLC