340 buildups

I picked up the 340 today and stripped it all down. It had one 340/360 head, then the other was a 318 one. Then the blocks blue but the date on it is 6-15-71 and it has a steel crank (72-73 maybe?). I think the cam is a 268H. We also brought home the magnum heads, but we're not sure if we're gonna buy them($300 to buy them, or same price to get the other ones cleaned up and stuff), or maybe go for aluminum ones or something. It's gonna need to be bored .30 over and hopefully its all good, but hey, we got it for free so if its bad, I guess its not too bad.