I have a set of used '86 vette heads(casting number 462624) i just bought from a friend for $100. i am building a 355 tpi engine and was wondering if they would be any good with a set of domed pistons. i was planning on rebuilding them, new valves, springs, studs, etc.... should i keep these heads and rebuild them and have some minor machine work done to them or should i buy a new set for a few hundred. i am trying to save money here but heads are very important. i can rebuild them for 200-250 or should i spend 300-350 on a cheap, but new set????

 

I would get different or new heads. Those heads are notorious for cracking (thin decks) and are a smoggy late 70's head. I thought they quit using them in the early 80's (although I do know they came on 84 Crossfire Vettes) I would upgrade to something different if I were you, plenty of good heads out there for reasonable prices.