I have a collection of heads from a Chevy (GM) 350 short block. They came off a rebuilt engine with simply concerning 5k miles on them. I've no need for them as they do not fit the vehicle I obtained them for (learned lesson: check casting digits more thoroughly lol) The spreading digit for the heads is 376450 (please check the numbers as I will certainly decline any kind of returns). I'll offer both for $300 or $175 each (I 'd instead they were both gone). I'm eager to amuse sensible offers yet no trades on these kindly.