A buddy of mine had a 572 with -1s on it the crank,rods,and pistons came from 440 source he sprayed it every lap for two years an went in the 4.50's more times than I can count.
The stuff is as good as the guy putting it together.
I had a 520 440 source bottom end ran it two years went 5.00 many times, no problems

It all depends on how much power your going after

God made cold beer,good friends,hot ladies and race cars don't spit in his face by pi$$ing and moaning about how life sucks!!!