They do bolt on but 260 #10, 2A and 307 6A and 7A heads have tiny ports in different spots. The 260 have the ports near the top, the 307 in the middle. I actually think the 260 ports are in a better spot. Wow, I think that is a first, the 260 isn't better compared to anything.Intake fitment is the same regardless of heads. What you need to pay attention to are the emissions doo-dads. All small block Olds intakes from 67 and up intechange.
I have an aluminum intake from an 86 442 with 7A heads for sale.....if your local deal doesnt work out.Thanks for the info. My car has the 6a heads but my intake is cracked. I found one for 7a heads close to me, I just didn't want to waste my time.
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