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7.3l powerstroke into 78 bronco. HELP!

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Old 09-02-2010, 08:13 AM
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Exclamation 7.3l powerstroke into 78 bronco. HELP!

im seriously considering dropping a 7.3l powerstroke diesel engine in a 78 bronco.
If someone could help me wit any problems i may run into like mounting the engine and tranny, wireing harnesses, gear ratios and anything else. thank you!!
 
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Old 09-02-2010, 02:32 PM
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In a minute or two American Thunder will chime in (and you'll probably end getting a Cummins 6BT)... So i'll just say welcome to FTE!.
 
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Old 09-02-2010, 04:20 PM
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haha thanks Encho
It wasn't a couple minutes, though, it was almost 2 hrs.

I'm not sure how hard it would be to drop in a 7.3, but buying a running parts truck would probably make it a pretty straight forward swap.

p.s. OK, I'll say it. Go Cummins power.
 
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Old 09-19-2010, 12:57 PM
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broncoboy-
I am also working on dropping in a 7.3L into a 78 bronco, unfortunately I ran into some issues while restoring the truck and have ended up doing a complete frame off and not as far as I would like to be. Here are a few things to think about;
are you going to use the original trans?
finding the correct motor mounts might be impossible, they might have to be custom fabricated.
doing a body lift will help with clearance issues.
your going to have to increase the "size" weight capacity of your front springs.
should beef up your tie rods, ball joints, and steering. the 78 f250 parts will fit
also changing over the rear brakes to disk will greatly help with your stopping power.

hope this helps......
 
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Old 09-19-2010, 05:33 PM
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Go on youtube and look up 7.3 bronco. Theres a guy who did a VERY nice 90's bronco with a 7.3. You might be able to email that guy from there and get some advice. Theres a pretty cool late 60's early 70's bronco on there too thats orange with a cummins.
 
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Old 12-10-2013, 09:23 PM
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1979 bronco engine swap to 7.3 litre or cummins 5.9 litre?

want to swap my 351m out for a diesel, I love my 7.3 in my super duty. Anyone complete a swap yet, I need help to decide which engine and difficulty+cost?
 
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Old 12-11-2013, 03:18 AM
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There are several that have completed the swap. I've seen a few threads over in the Diesel section. Go read everything at 4BTswaps.com and decide from there. A few Google searches wouldnt hurt. It'll be hard to decide what information you actually need to pay attention to and which you can discard.

For example, I've seen people say that a C-6 wouldnt last behind a Cummins and mine has been going for over 6 months of daily thrashing, give or take; and above, some guy mentioned swapping springs...to higher weight rating. Buy my lift actually has a lower weight rating, squishier spring and the vehicle sits pretty much exactly where it sat before the swap.

I didnt think the swap was very hard, but I spent the vast majority of it intoxicated...who knows what I really did???
 
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Old 12-11-2013, 09:42 AM
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Originally Posted by psychlopath
There are several that have completed the swap. I've seen a few threads over in the Diesel section. Go read everything at 4BTswaps.com and decide from there. A few Google searches wouldnt hurt. It'll be hard to decide what information you actually need to pay attention to and which you can discard.

For example, I've seen people say that a C-6 wouldnt last behind a Cummins and mine has been going for over 6 months of daily thrashing, give or take; and above, some guy mentioned swapping springs...to higher weight rating. Buy my lift actually has a lower weight rating, squishier spring and the vehicle sits pretty much exactly where it sat before the swap.

I didnt think the swap was very hard, but I spent the vast majority of it intoxicated...who knows what I really did???
Thanks! which cummins do you have?
 
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Old 12-11-2013, 10:15 AM
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I put a 12 valve out of an old bus in mine.
 
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Old 12-11-2013, 12:40 PM
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cruise control for a diesel in a 1979 bronco

Originally Posted by psychlopath
I put a 12 valve out of an old bus in mine.
just wonder if anyone has cruise control on a diesel in a bronco, maybe used the engines previous setup, wire and steering wheel with controls out of a dodge or f-250sd?
 
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Old 12-11-2013, 03:26 PM
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If you're asking me, I have no clue. I dont have cruise on any of my fun vehicles, and I dont know anything about how it works.

I know I've seen "Universal," cruise control for sale in some of the JC Whitney catalogs, so maybe it's something you could do. If you decide to, even if you fail, I'd like to see a very thorough write up...I bet a ton of others would love it as well. For some people, little details like that really make it enjoyable.

The forum 4btswaps.com may have the info you need. There are some guys there that know what they are doing...and...some that dont quite know as much but sure are loud about it.
 
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Old 12-11-2013, 06:22 PM
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Originally Posted by psychlopath
If you're asking me, I have no clue. I dont have cruise on any of my fun vehicles, and I dont know anything about how it works.

I know I've seen "Universal," cruise control for sale in some of the JC Whitney catalogs, so maybe it's something you could do. If you decide to, even if you fail, I'd like to see a very thorough write up...I bet a ton of others would love it as well. For some people, little details like that really make it enjoyable.

The forum 4btswaps.com may have the info you need. There are some guys there that know what they are doing...and...some that dont quite know as much but sure are loud about it.
Yes I am talking to a pro install guy about doing it. I will let you know. Thanks fo rthe help.
 
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Old 12-11-2013, 10:07 PM
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powerstroke swap in my 1979 f-250 bronco firewall and clearances

Any body know if there is enough room to install the 7.3 litre in the 78 or 79 without cutting steel? Much trouble doing the install? I am thinking of buying a 1999 f-250 with 160,000 miles on it and taking the tranny and engine out and reinstall it in my 1979 bronco, it is 2wd and i have a np205 trans case, I wonder if the transfer case will be ok or should i get one that goes with the 7.3?
 
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