I think the Question speaks for itself . Ive got a 70 camaro with a 350 and would like to know how i can identify which heads are on this car? any hints would be of great help ! Also I have a newer set of heads that Have the Center bolt style vavle covers ,these I don't know what they are off of Could be a 305 or a 350 any help on these ?
Thanx nats70z28

Sometimes, not always, you can remove the oil fill cap and with a small maglight, look in and see the casting numbers. If not you'll have to remove valve cover. Could be a 6 or 7 digit number, or a 4 digit code. Post these numbers, whatever you can find, and this can be decoded.

What kind of bumps or markings are on the ends of the heads? You can sometimes narrow it down by that.