Need 74 Duster Underhood harness

I believe the main underhood harnesses are the same after 73 and the only difference beetween the 6 cyl and V-8 wiring is a detachable engine harness which is at the end of the motor at the firewall.This is away from the main bulkhead connector and seperate from the rest of the wiring so a main harness from either engine should work and you'll plug your engine harness into it.