heads

[dukeboy_318]

can someone please explain the differences between 452 and 346 heads, which ones are better, stronger, things like that thanks

[Chatt69chgr]

The 346 heads were used between 71 and 73.  The 452's between 76-78.  Both are open chambered and use the same size valves.  I think the 346's have flame hardened valve seats where the 452's use induction hardened valve seats.  Both flow about the same.  I think both are 88-92cc chambers.  Given a choice, use the 452's.  Check the article out in Mopar Muscle magazine:

http://www.moparmusclemagazine.com/techarticles/5115_cylinder_heads/index.html

[dukeboy_318]

thanks