'65 516 heads on a '67 383?

[bordin34]

You could try finding some 452 heads. They are on mid to late 70's 440's. I think they have the bigger exhaust valve and there are probably tons of them.

[Super Blue 72]

Thanks for the suggestion!  I don't see too many Mopar heads floating around where I am but I'll keep an eye out for them!  Thanks! 

[hemiken]

Thanks for the suggestion!  I don't see too many Mopar heads floating around where I am but I'll keep an eye out for them!  Thanks! 

That's because they are too god D*%n heavy to float anywhere.

[Chryco Psycho]

the 452 are just another smog open chamber head

[Super Blue 72]

That's because they are too god D*%n heavy to float anywhere.

    

Very true!  I think that's why moving the engine without the heads made it so easy!

Thanks for the info on the headds, Chryco! 

[bb71challenger]

the 452 are just another smog open chamber head

They are basically a 906 head with induction hardened exhaust seats for unleaded gas right? Some people like them but to me the hard seat will get ground off when you do a valve job or upgrade valve size.

[Challenger6pak]

The 452 had a small change in the port walls also.  Size was the same.  The 452's just curved a little different.  I have used both 906 and 452's ported and unported.  I have not seen a difference between the two heads as far as performance.