I have seen this kind of post on other sites and I think one thing that no one ever asks is what kind of preformance are you looking to get? If you mean will the motor run then yes. Will it get more hp and or tq from one to the other then that is where the debate is. There are a ton of differences in the hemi head world.The older heads stay alot closer to the standard 426 heas but the later model stuff is way different.Just my 2 cents