Need Advice on Engine Swap 83F100
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Need Advice on Engine Swap 83F100
Hello all, thanks for taking the time to help.
Heres what I have:
I have a wrecked 1991 Mustang 5.0. Its an automatic. Everything on it works besides the body.
Right now I am out of a car and need to figure something out.
My brother gave me a 1983 F100. Right now is has a straight 6 with a 4 speed very low geared standard, and I dont know what rear end.
I want to swap out my engine with fuel injection from my mustang into the truck. Then Either buy a C6 or if possible have my AOD rebuilt and use it.
Should I keep the 4-speed in it?
so far this is what I know about the swap.
I need a tank and fuel lines from an 92-96?
I will need to remove the harness and computer from the mustang.
If I change trannys then I will need a different drive shaft?
Will I need different motor mounts?
Can anyone comment on my questions or think of any problem that I might run into?
Thanks, I appreciate it.
Heres what I have:
I have a wrecked 1991 Mustang 5.0. Its an automatic. Everything on it works besides the body.
Right now I am out of a car and need to figure something out.
My brother gave me a 1983 F100. Right now is has a straight 6 with a 4 speed very low geared standard, and I dont know what rear end.
I want to swap out my engine with fuel injection from my mustang into the truck. Then Either buy a C6 or if possible have my AOD rebuilt and use it.
Should I keep the 4-speed in it?
so far this is what I know about the swap.
I need a tank and fuel lines from an 92-96?
I will need to remove the harness and computer from the mustang.
If I change trannys then I will need a different drive shaft?
Will I need different motor mounts?
Can anyone comment on my questions or think of any problem that I might run into?
Thanks, I appreciate it.
Postmaster
Joined: Feb 2003
Posts: 3,441
Likes: 5
From: Muskegon, MI (home)
Need Advice on Engine Swap 83F100
If it were me I would leave the manual transmission in, it would be more fun to drive. I would not install a C6 simply because they rob a lot of power, The AOD would probably be okay but I would definately have it rebuilt. Otherwise I would go with the C4 auto if it were my choice because it's stronger than the AOD. Yes you will need to transfer all the wiring an the comp. to the truck. As for the rearend; if it has a removeable rear cover it's an 8.8 if it does not, then it's the 9 inch. You shouldn't have to change driveshafts I would think you could just switch out the input yolks and you should be just fine. Good luck on the swap!
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Need Advice on Engine Swap 83F100
Thanks for the reply.
I didnt know that c6's rob alot of power. The main reason I wanted to remove the 4-speed is because its so low geared.
First gear is useless unless you are pulling a trailer. I can usually start out in 3rd gear with no problems. And thats with the 6cyl. I figured it would be worse than the that with the 302.
Can anyone tell me what transmissions came stock with an 83F100?
Thanks
I didnt know that c6's rob alot of power. The main reason I wanted to remove the 4-speed is because its so low geared.
First gear is useless unless you are pulling a trailer. I can usually start out in 3rd gear with no problems. And thats with the 6cyl. I figured it would be worse than the that with the 302.
Can anyone tell me what transmissions came stock with an 83F100?
Thanks
Post Fiend
Joined: Jan 2000
Posts: 5,330
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From: Dryden, ON, Canada
Need Advice on Engine Swap 83F100
The only manual transmission options in an 83 F100 were the 3 on the tree and a 3 speed with O/D. Obviously, if you've got granny low, it ain't stock, or my brocures are wrong... Grab the trans and axle codes off of the door tag and I'll tell ya what you're working with.
Evan
Evan
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Need Advice on Engine Swap 83F100
Hey man, thanks for the reply.
The truck is still at my brother's house. I will take a look at the tranny and axle codes tomorrow.
I dont know the history of the truck, it had the 4speed in it when my brother bought it.
Is it worth all of the trouble to keep the engine fuel injected? It seems alot easier to make it carberated. Although it would cost me more in parts for the carb, fuel pump, ignition, distributor, intake etc. Im just worried that I will not be able to switch all of the wiring and computer and make it work in the f100.
By the way, Im on a budget of $1500. The truck will need new exhaust and tires as well. So I figure I have $1000 to get the engine in and working properly. Does this sound feasable?
Im not looking to trick it out or anything. Im just a working man trying to get some transportation going.
Say I do decide to keep the 4-speed in there, it's likely what I will do. What will I need to mate the 302 from the automatic with the standard truck?
Besides a 50oz imballance flywheel and pilot bearing and clutch?
I keep editing...lol, I keep thing of more and more questions to ask.
I really appreciate the advice,
Thanks
The truck is still at my brother's house. I will take a look at the tranny and axle codes tomorrow.
I dont know the history of the truck, it had the 4speed in it when my brother bought it.
Is it worth all of the trouble to keep the engine fuel injected? It seems alot easier to make it carberated. Although it would cost me more in parts for the carb, fuel pump, ignition, distributor, intake etc. Im just worried that I will not be able to switch all of the wiring and computer and make it work in the f100.
By the way, Im on a budget of $1500. The truck will need new exhaust and tires as well. So I figure I have $1000 to get the engine in and working properly. Does this sound feasable?
Im not looking to trick it out or anything. Im just a working man trying to get some transportation going.
Say I do decide to keep the 4-speed in there, it's likely what I will do. What will I need to mate the 302 from the automatic with the standard truck?
Besides a 50oz imballance flywheel and pilot bearing and clutch?
I keep editing...lol, I keep thing of more and more questions to ask.
I really appreciate the advice,
Thanks
Last edited by 83pickemup; Mar 2, 2003 at 05:35 PM.
Post Fiend
Joined: Nov 2002
Posts: 9,987
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From: Memphis, TN
Need Advice on Engine Swap 83F100
You'll have to change the engine mounts & perches to go from an I-6 to a V-8, but they're cheap & common at junkyards. I swapped an EFI into my truck (which you can see in my sig link) and the only OTHER things I would have had to change to go to a V-8 would have been the radiator & mounts, which would only have added ~$200 to the $1300 I spent.
You can use '84-96 EFI gas tank & lines, but '90-96 are best and shouldn't cost any more.
You'll DEFINITELY appreciate the EFI if you keep it all working like stock, and it's not hard to do. I think it's easier than trying to MODIFY the system WHILE swapping it. It'll be easier to drive, maintain, & diagnose if it's working like a factory EFI engine.
You can use '84-96 EFI gas tank & lines, but '90-96 are best and shouldn't cost any more.
You'll DEFINITELY appreciate the EFI if you keep it all working like stock, and it's not hard to do. I think it's easier than trying to MODIFY the system WHILE swapping it. It'll be easier to drive, maintain, & diagnose if it's working like a factory EFI engine.
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Need Advice on Engine Swap 83F100
Thanks for the advice Steve.
You are right, I should go ahead and make the swap.
Do you happen to know of a thread or any place that would have info about a swap like this?
If I do it, I was planning on doing a steo by step process. Removing only a few parts at a time, then installing them on the truck before removing anymore. I plan to mark all connecters with numbers so they will be easier to match up. Before removing anything from the mustang, I plan to remove the i-6 from the f100 and prepare the truck for the new engine and wiring.
Does this sound like a good way of doing it? Any suggestions?
Is it worth searching the yards for the tank and lines or should I just buy new?
Everything worked fine before the wreck. It even stayed running after hitting two concrete walls and two cars. (got to love a Ford)
The check engine light didnt even come on. Only problem with the engine is an oil leak at the front of the intake. I will fix that when I pull it.
Thanks again everyone. I will look for those teanny and axle codes tomorrow.
You are right, I should go ahead and make the swap.
Do you happen to know of a thread or any place that would have info about a swap like this?
If I do it, I was planning on doing a steo by step process. Removing only a few parts at a time, then installing them on the truck before removing anymore. I plan to mark all connecters with numbers so they will be easier to match up. Before removing anything from the mustang, I plan to remove the i-6 from the f100 and prepare the truck for the new engine and wiring.
Does this sound like a good way of doing it? Any suggestions?
Is it worth searching the yards for the tank and lines or should I just buy new?
Everything worked fine before the wreck. It even stayed running after hitting two concrete walls and two cars. (got to love a Ford)
The check engine light didnt even come on. Only problem with the engine is an oil leak at the front of the intake. I will fix that when I pull it.Thanks again everyone. I will look for those teanny and axle codes tomorrow.
Last edited by 83pickemup; Mar 3, 2003 at 12:07 AM.
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Post Fiend
Joined: Nov 2002
Posts: 9,987
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From: Memphis, TN
Need Advice on Engine Swap 83F100
After collecting ALL the parts from junkyards, I drove my truck into my carport, pulled the 300, dropped the 4.9 in, laid in the wiring harness, & connected everything. After freeing the injectors, it cranked & ran fine and has ever since. Working alone, it took 4-5 days. But I spent months researching exactly what had to be swapped, what connections I'd be making, and finding all the parts.
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Need Advice on Engine Swap 83F100
Got another question about this swap.
Do I need a clutch and flywheel for a mustang, or what.
Motor is from a 91 5.0, Auto. now mating it to a 4-speed standard.
There is a 300i-6 mated to the 4-speed right now. Will it bolt up to my 302 using same bellhousing?
Here's a pick of that tag, aparently it was made in Canada.
Do I need a clutch and flywheel for a mustang, or what.
Motor is from a 91 5.0, Auto. now mating it to a 4-speed standard.
There is a 300i-6 mated to the 4-speed right now. Will it bolt up to my 302 using same bellhousing?
Here's a pick of that tag, aparently it was made in Canada.
Posting Guru
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Need Advice on Engine Swap 83F100
300 and 302 use the same bellhousing. You will need the clutch pivot bracket for a 302/351w. Use flywheel/clutch from 83 or later 302 truck. Do not use the 300 flywheel it is balanced the one you need has 50oz imbalance.
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Need Advice on Engine Swap 83F100
Thanks for the reply ecarter.
Pivot bracket? Its that the ball shaped thinging inside the bellhousing that the end of the fork attatches to?
Can I not use the on that is currently installed on the truck?
I couldnt figure out how to post a pic. The pic of the door tag is in my gallery.
Pivot bracket? Its that the ball shaped thinging inside the bellhousing that the end of the fork attatches to?
Can I not use the on that is currently installed on the truck?
I couldnt figure out how to post a pic. The pic of the door tag is in my gallery.
Posting Guru
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Need Advice on Engine Swap 83F100
The part circled in red is the one you will need the blue one is for a 300.
http://www.webphotos.com/view_photo....4504&p=2267750
http://www.webphotos.com/view_photo....4504&p=2267750