300 EFI into a 79'
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Senior User
Joined: Mar 2001
Posts: 152
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From: Cincinnati, Ohio
300 EFI into a 79'
Any fore-seeable problems that I should be aware of doing such a swap? Im getting ahold of a mostly cherry 79' 150 with out an engine (had a 351m prior). I have a 300 EFI w/5speed in a very less than cherry 89' f150. Any associated problems with transplanting the entire driveline into the 79' ? (engine, 5spd, and t-case)
Cargo Master
Joined: Apr 2001
Posts: 2,364
Likes: 3
From: Eustis FL
Sounds like a worthy project to me... The 300 was available in that year as well, so you should find all you need... Not sure what Dennis means about the matching efi to truck thing... The power train is a matched set, right?
Mark
Mark
I'll have the Roast Duck
Joined: Jul 2002
Posts: 9,622
Likes: 110
From: Northshore, MN
if the tcase is a BW you'll need to grind the edges to make it fit. you'll need to make driveshafts, tcase shifter linkage, and mod the clutch pedal assembly for the hydraulic throwout bearing. Fuel lines from the sending unit/EFI pump all the way along the frame rails up to the engine need to be installed from the 89...noone sells EFI fuel lines. How do I know? cuz I've tried it. I ended up with a carbed 300 in my 79 bronco instead. Building the driveshafts are about $300 each, but this is due to using double cardan joints. with the 89 Bw tcase I installed, I then found out Ford never once made the right combo, ujoint size, length, and double cardan joint assembly, so I had to make them. I had to replan, and put the 203 back in, until I have $600 available. The rest Is in, so I know it's possible. I enjoy the swap, but still only get 13-14 mpg.
Cargo Master
Joined: Apr 2001
Posts: 2,364
Likes: 3
From: Eustis FL
Dennis, I'm assuming the computer would come with the 300 efi and its trans, so it should work. Axle ratio will not matter with the older EEC IV engine management systems. Weight won't matter either, as they are configured for max power and efficiency for the engine. Besides, coming from one 1/2 ton truck to another, I doubt there would be any real weight difference, if any...
The only thing I can see a problem with is swapping computers between auto and manual transmissions, if the vehicle is the same. Different years (only talking EEC IV era) can be a problem too, such as a car using mass air or speed density setup...
For this particular instance, the truck in question should work just as well as the 80's truck it came from.
I would love to see pics and hear a report about another '73-79 Ford gone modern!
Mark
The only thing I can see a problem with is swapping computers between auto and manual transmissions, if the vehicle is the same. Different years (only talking EEC IV era) can be a problem too, such as a car using mass air or speed density setup...
For this particular instance, the truck in question should work just as well as the 80's truck it came from.
I would love to see pics and hear a report about another '73-79 Ford gone modern!
Mark
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Senior User
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From: Cincinnati, Ohio
The more I think about it the who switch seems pretty much straight forward.Keeping in mind the carb and EFI differences of course. The only hard part I can think of is the clutch pedal
Yes it is
I would love to see pics and hear a report about another '73-79 Ford gone modern!
Mark
I cant wait to see the look on someones face when the hood opens up and they expect to see a 302 or 351
Originally Posted by trinogt
The power train is a matched set, right?
Mark
Mark
Originally Posted by trinogt
I would love to see pics and hear a report about another '73-79 Ford gone modern!
Mark
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Senior User
Joined: Mar 2001
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From: Cincinnati, Ohio
Ok guys...I have a new delima. Im picking up the 79' tomorrow And the 89' with the 300 EFI is waiting in the wings for the project to start. But let me lay this all out for you with a question first. For a tatal of $650 initially invested, would you #1 rather have one 4WD truck or #2 have 2 4WD trucks? This is why I ask, The 79' is complete minus a motor. The 89' is complete except it has a rotted frame. But what you fellas didnt know is my daily driver is 84' 2WD with a good engine, tranny and frame, but a rotted cab and dog house. So this is what Im thinking...Fresh up the motor in the 84' and drop it in the 79' viola' one running and driveable 79'. Scrap most everything else on the 84' except the frame and rebuild the 89' 4WD on th 84' frame, viola' 2 running and driveable 4WD trucks for $650 (paid $200 for the 89' paid $450 for the 79') That obviously wont include the extra nuts and bolts reguired for the two builds though. What would you guys do?
Tuned
Joined: Jul 2001
Posts: 439
Likes: 0
From: Erie, Pa
If I understand correctly, the 4wd stuff on the 89 is a bolt in to the 2wd, correct? If that is the case, your projects sound excellent to me. When done, dump the 89 for some extra cash, and have a decent 79 on the road.
Steve S.
To many to list.
Steve S.
To many to list.
Originally Posted by roosplash
Ok guys...I have a new delima. Im picking up the 79' tomorrow And the 89' with the 300 EFI is waiting in the wings for the project to start. But let me lay this all out for you with a question first. For a tatal of $650 initially invested, would you #1 rather have one 4WD truck or #2 have 2 4WD trucks? This is why I ask, The 79' is complete minus a motor. The 89' is complete except it has a rotted frame. But what you fellas didnt know is my daily driver is 84' 2WD with a good engine, tranny and frame, but a rotted cab and dog house. So this is what Im thinking...Fresh up the motor in the 84' and drop it in the 79' viola' one running and driveable 79'. Scrap most everything else on the 84' except the frame and rebuild the 89' 4WD on th 84' frame, viola' 2 running and driveable 4WD trucks for $650 (paid $200 for the 89' paid $450 for the 79') That obviously wont include the extra nuts and bolts reguired for the two builds though. What would you guys do?
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Senior User
Joined: Mar 2001
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From: Cincinnati, Ohio
Originally Posted by 79schaefer
If I understand correctly, the 4wd stuff on the 89 is a bolt in to the 2wd, correct? If that is the case, your projects sound excellent to me. When done, dump the 89 for some extra cash, and have a decent 79 on the road.
Steve S.
To many to list.
Steve S.
To many to list.
Last edited by roosplash; Feb 5, 2006 at 09:36 AM.
