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Wiring harness ?'s for a 1978 Bronco 460in swap

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Old 04-24-2013, 04:18 AM
RJRPC RJRPC is offline
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Wiring harness ?'s for a 1978 Bronco 460in swap

Hi. I'm fairly new to this site but I know enough to do a search before I start asking questions. I couldn't find any real answers so here goes...

I have a 1978 Ford Bronco that had a 351m engine which blew up. I took it as an opportunity to install a 460. I have decent mechanical skills, but no space to do the extensive work needed to do an engine swap. So I found a good mechanic who is doing it for me. I found a parts truck, a 1978 Ford F250 that has a 460. Engine runs strong and is currently being installed in the Bronco. I recently asked my mechanic about the wiring harness. I asked if the existing wiring harness will hook up correctly to the 460 or if I should pull the wiring harness from the F250. He seemed unsure of the correct answer but said pull the harness because we would probably need it.

Side note: my goal with this project is to make a smog legal 460 in this Bronco. I live in California and I already spoke to a smog referee about what was necessary to make this Bronco legal with a 460 and small compliant. The F250 parts truck had a completely original 460 with all of the necessary smog components.

So I guess my questions are:
Will I be able to use the existing wiring harness in the 78 Bronco with the 460 swapped in?
If not, will the wiring harness pulled from the 78 F250 parts truck install without any problems in the Bronco? - I don't see why it wouldn't work because the engine bay and the dash are identical. However, I have read in other posts that the rear window wiring will be in issue-
Lastly and most importantly, what should I expect to pay in order for the wiring to be done correctly on my 78 Bronco? My mechanic has a friend who owns a business wiring vehicles. This friend of my mechanic offered to wire my Bronco in trade for a car trailer I own. Labor costs only. The trailer is valued at probably around $1000 in its current condition. I do not have much knowledge about wiring vehicles, but $1000 soley in labor cost to wire a late model truck with minimal accessories seem really high to me.
Any and all comments suggestions are much appreciated. Thanks in advance.
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Old 04-24-2013, 04:18 AM

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