I may even turn it into a 327 as I have a type 2 HK GTS327 short in the shed that has +0.030" pistons in it after a recent rebuild before I got it, so just linish the crank and put new rings and bearings with that rotating assembly in this block. It'll depend on the old early 60's Fuellies at my mates place, dunno if they are 461 or 462. 461 will be too high in compression with 350 flat tops, but are fine with a 327 (around 10:1).