what donor engine do I need?
#41
#42
JK Junkie
#44
Since you are looking at a 6.4, I believe your choices are limited to newer SRT models only which makes availability somewhat harder. I believe most people just get a crate 6.4 from Mopar for this swap but your best bet would be to call an installer and ask them over the phone so as to root out all the internet noise.