Swapping front clips.

[Chlsnk]

A few questions. On swapping to a 73-80 front clip from a 81-87 style. Will the 73-80 wiring harness plug into the block on the firewall just fine or will I have to mod my 81-87 wiring harness to work with the single head light?

I understand the core support should bolt right up to the frame but I need the early style body mounts?

And what is the difference in the hinges? If it is too involed I may just end up going with a lift off fiberglass hood.