Coming back with a build! Need advice!

Stealths advertise 80cc chamber - not really much smaller than stock, and the heads probably won't be milled.. plus with a small lift mild cam that it has should be ok I would think - my machinist does as well.. I'm not going to assemble anything or degree the cam, my machinist is.. I'm only putting the pump/pan, and accessory drive on.. he is also buying most of the key items (spring kit, gaskets, bearings, ect)

If someone knows otherwise feel free to chime in on the pistons..