57 or 6.1
 

hi so im new to hemi in a sense i once owned a 4.6 hemi valiant in australia.
i am looking a buying a jeep grand cherokee i have the option of either the 5.7 or the 6.1. before i go into the process of buying one i wanted to know if either engine had any major advantages or disadvantages, or if either are known to have any major faults. wasnt sure which thread would be best to post this in.
thanks