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1991 f150 302, what engine will bolt on?

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  #1  
Old 09-14-2008, 09:33 AM
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1991 f150 302, what engine will bolt on?

My engine **** the bed, 189,000 miles on it. I dont' want to change wiring harness or anything but the engine. WHat year engine will work with my truck for a direct drop? Not sure what years will fit.
Thanbks guys, new to this forum but been on stangnet for years.

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Old 09-14-2008, 01:49 PM
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well, another 302 of course.

and a 351 will if you stretch a wire and vacuum hose, and get new exhaust
 
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Old 09-14-2008, 04:26 PM
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tHANKS Quaddriver,
So any 302 efi be it mustang or f150 will drop right in? if this is so I'll be a happy camper, please verify...Thank you so much
 
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Old 09-14-2008, 06:07 PM
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jepp any mustang 5.0Ho will drop right in


im doing that myself now.. a mustang 5.0 in a f150
 
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Old 09-14-2008, 06:11 PM
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Don't put a mustang motor in your truck. The mustang motor makes its power much higher up in the powerband and you need all the low-end torque that you can get out of a 302 to move a big heavy pickup truck. Unless you have a heavily modified 302 that makes lots of power you'll regret it.

Swapping a 351 is a good idea, but the 351 makes quite a bit more torque than the 302, and that may shorten the life of your tranny.

You will also need a new PCM if you go with a 351. Your 302 PCM will run a 351, but not very well.
 
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Old 09-14-2008, 09:57 PM
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Originally Posted by andym
Don't put a mustang motor in your truck. The mustang motor makes its power much higher up in the powerband and you need all the low-end torque that you can get out of a 302 to move a big heavy pickup truck. Unless you have a heavily modified 302 that makes lots of power you'll regret it.

Swapping a 351 is a good idea, but the 351 makes quite a bit more torque than the 302, and that may shorten the life of your tranny.

You will also need a new PCM if you go with a 351. Your 302 PCM will run a 351, but not very well.

I have a mustang 5.0 in my 91 F150 and had the roller cam and lifters in it with headers and duals and 350's front and rear and it would boil my 35's...but when I put the 38.5's under it LOL it wont even think about it.

Im wanting to do a 351 swap on her for more power, I have the E4OD Tranny. Will that work fine or will it shorten the life of the tranny if I do end up figuring out how and actually do the swap?
 
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Old 09-14-2008, 11:53 PM
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Originally Posted by andym
Don't put a mustang motor in your truck. The mustang motor makes its power much higher up in the powerband and you need all the low-end torque that you can get out of a 302 to move a big heavy pickup truck. Unless you have a heavily modified 302 that makes lots of power you'll regret it.

Swapping a 351 is a good idea, but the 351 makes quite a bit more torque than the 302, and that may shorten the life of your tranny.

You will also need a new PCM if you go with a 351. Your 302 PCM will run a 351, but not very well.


yes you can swap a mustang motor in your truck you just need a torque cam.. like one im using

COMP Cams 35-349-8
 
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Old 09-15-2008, 12:38 PM
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Yes, I should have mentioned that you should change the cam when putting a mustang 302 in a truck.
 
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Old 12-19-2008, 03:06 PM
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wish I were a lil more incline mechanically
 
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Old 12-19-2008, 10:13 PM
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Boys, the stock 5.0HO cam is smaller than that Comp XE264.. so it too can be considered a TQ cam. There's absolutely no downside to replacing the stock truck 5.0 with a HO, you'll get more power everywhere, no computer changes or mods necessary, and all the stock truck accessories and intake bolt right on. The is an ideal swap.
 
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Old 12-20-2008, 08:15 AM
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Originally Posted by Conanski
Boys, the stock 5.0HO cam is smaller than that Comp XE264.. so it too can be considered a TQ cam. There's absolutely no downside to replacing the stock truck 5.0 with a HO, you'll get more power everywhere, no computer changes or mods necessary, and all the stock truck accessories and intake bolt right on. The is an ideal swap.

If this is the case, then my options just got bigger! I know lots of people that have stock 5.0's laying around from 87-93 mustangs...Oh yeah, can it be from a 97-93 mustang using the same harness? cause I have a 1992 mustang alot of the wiring looks different.
 
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Old 12-20-2008, 09:22 AM
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Originally Posted by Conanski
Boys, the stock 5.0HO cam is smaller than that Comp XE264.. so it too can be considered a TQ cam. There's absolutely no downside to replacing the stock truck 5.0 with a HO, you'll get more power everywhere, no computer changes or mods necessary, and all the stock truck accessories and intake bolt right on. The is an ideal swap.

If this is the case, then my options just got bigger! I know lots of people that have stock 5.0's laying around from 87-93 mustangs...Oh yeah, can it be from a 87-93 mustang using the same harness? cause I have a 1992 mustang alot of the wiring looks different.
 

Last edited by racer_inboston; 12-20-2008 at 09:57 AM. Reason: worng year posted
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Old 12-20-2008, 09:40 AM
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You're not gonna use any of the wiring from the mustang so it doesn't matter what it looks like, and any 5.0HO is a good candidate except the '86 version.
 
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Old 12-20-2008, 10:03 AM
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Ok, so...87-93 5.0 harness and all should fit my 91 f150? firing order is the same? does it matter if it came off of a manual or automatic? what should I be meticulous about knowing before I do the swap?

thanks, and all info is well taken..
 
  #15  
Old 12-20-2008, 10:05 AM
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Originally Posted by racer_inboston
Ok, so...87-93 5.0 harness and all should fit my 91 f150?
NO!!!!!! You can't use any electrical wiring from the car.
The firing order is not the same, but the truck EFI system doesn't care so just use the mustang distributor as it's wired.
It also doesn't matter what tranny is in the car, just be sure to use the flywheel/flexplate currently in the truck.
 


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