Its horrible either way and at this point ill just stick in a small cam and a good intake on it and run it since its already .060 over. I'll build a better one later. Ive enjoyed learning how to calculate the dish volume, compression etc.
It is a remanufactured motor so it could be decked. I re measured the dish and it is .300 deep 3.380 at the top and 3.88 at the bottom. The formula i found put it at 43cc. I used summits compression calculator and came up with 7.15 to 1 with a steel shim head gasket.
I'll get a measurement this friday. I dont mind fairly low compression because its going in a driver and id like to run cheap gas but 7.5 to 1 is pitiful.
I have a 77 motorhome 440 that has dished .060 over pistons in it. The only numbers i can find on them are 1886 inside of the skirt. I cant find any info on them and was someone might know what they are.