273 302 318 340 build

Ok had to call Federal Mogul tech support to get the weights of their Sealed Power 526AP 30.
He was able to pull a print for Std bore. 594.6 gms +/- 2 grams. BUT the weight goes up by 10 gms per .010" overbore. So in theory weight is 595 + 30=625 grams.
Is this ok to go without needing to rebalance?
Thanks