Whats the difference between these heads??

[64wagon]

Hi guys, hoping someone can tell me the difference between Mopar Performance head #'s P5153654 and P5153823

All i can find is
P5153654 Aluminum Raised Port 75cc chamber 2.20/1.81 High Port Angle Plug
P5153823 Aluminum Raised Port

Thanks
Rob

 

[crackedback]

Probably, one is a max wedge port the other a std wedge port.

They are the same part as the Ede Victor Heads and much less money from a place like Summit.