Hello
I have a 1993 f-150, it has a 351 out of a 86 bronco, and has it original trans (e4od) As you could have guessed im having troubles with the tranny. I have a few options to correct this issue but im trying to pick the best. I can get an electronic controller for the e4od (i really dont want to though) or I can put a c6 in it and do the whole swap(its a bogger so i dont need overdrive), or this is my question, can i convert that 351 into fuel injection, i have a complete parts truck that has the intakes wiring and everything, but Im just not sure if that 1986 351 is compatibale with a 93 fuel injection setup. Any answer will be great thank you
Yes, the 86 is compatable with the EFI system, and if the motor wasn't a 351HO to begin with I highly recommend a cam upgrade while you're at it. If your parts truck also had an E4OD tranny then you'll have everything you need to make it a tidy package. BTW.. you need 5.8 specific EFI parts, the 5.0 parts won't fit, mainly the intake and distributor.
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Paul O
1990 F150 4x4 XLT X-Cab 5.0, 3.55, Comp 35-349-8, Flowtech LT's to 3" single, FRPP Mass Air Conversion
Under construction: '85 351HO, Dart Iron Eagles, Roller Rockers, Typhoon intake, Crane 444232, 24lb Injectors, TweecerRT, Innovate LC-1 wideband O2
1990 Ranger 2wd, 2.3 Briggs & Stratten, 5-speed, 3.08 gears, sliding rear window.
you will also need all the fuel lines,tank,pump etc.. and return lines. efi wasnt offered for the 5.8 till 88. you will also need an 8.8 rear end with the vss from the 93 to allow that tranny to shift properly.
My parts truck is a 302, i know i need a dif lower intake, and a different disty, do all the fuel lines, pumps and what not should work as well. My truck that I am fixing up is a 93 and was originally a 302 with fuel injection so the tank and rear end are there as well, do i need to change computers, what other problems might i run into, and do you all think i should switch back to fuel injection or do the c6 swap
My parts truck is a 302, My truck that I am fixing up is a 93 and was originally a 302 with fuel injection
That's what I was afraid of, you need the complete 5.8 intake with fuel rail, not just the lower, the distributor, and a 5.8/E4OD computer. Swapping in a C6 certainly sounds like the easier manouver.
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Paul O
1990 F150 4x4 XLT X-Cab 5.0, 3.55, Comp 35-349-8, Flowtech LT's to 3" single, FRPP Mass Air Conversion
Under construction: '85 351HO, Dart Iron Eagles, Roller Rockers, Typhoon intake, Crane 444232, 24lb Injectors, TweecerRT, Innovate LC-1 wideband O2
1990 Ranger 2wd, 2.3 Briggs & Stratten, 5-speed, 3.08 gears, sliding rear window.
I didnt think the computers mattered, I know in my 95 cobra i converted from a 302 to 351 and i kept the 302 computer, also just as long as i have the 351 lower, the 302 upper bolts up to it I thought. The port holes are the same shape.
the 5.0 upper will not bolt to the 5.8 lower. your cobra was mass air, your 93 is not correct? if it is mass air then yes you can run the 5.0 computer but i would consider getting it tuned so it doesnt run the chance of going lean on you. i wouldnt swap in a C6 if you already have the e4od. also make sure you use a 5.8 specific flexplate, do not use the 5.0/e4od flexplate is it the wrong imbalance.
The truck manifolds are different, the 302 has square ports from the upper where the 351 non-lighting manifold has oval ports. Too bad you are not in Misery as I have a complete upper and lower from an 88 bronco fuel injection system.
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Stock 1978 F250 Custom regular cab 4x4 with 351M and 4 spd.
1991 Bronco silver anniversary, 5.8L EFI, E4OD swapped for C-6, otherwise still stock.
If I go the carb way, what does it take to swap the c-6 in the truck. I have a c-6 and t-case outof a 86 bronco. Also if i do decide to go the efi way, that 351 is supposed to be bored and have a cam in it, should I be worried about the speed density, or how hard would it be to switch over to MAF
The cam will be an issue for SD if it's a typical carb based cam with 110 LSA, it'll run but you can expect it to idle rough and die a lot. There are lots of performance cams that are SD EFI friendly and they're no more costly than any other cam, this would be the easier fix compared to switching to MAF which will involve changing part of the wiring harness or buying a fairly expensive conversion kit.
The tranny and x-fer case from the bronco will bolt right in, you'll probably need a tranny crossmember for it(or at least the right mount), and a driveshaft of course.
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Paul O
1990 F150 4x4 XLT X-Cab 5.0, 3.55, Comp 35-349-8, Flowtech LT's to 3" single, FRPP Mass Air Conversion
Under construction: '85 351HO, Dart Iron Eagles, Roller Rockers, Typhoon intake, Crane 444232, 24lb Injectors, TweecerRT, Innovate LC-1 wideband O2
1990 Ranger 2wd, 2.3 Briggs & Stratten, 5-speed, 3.08 gears, sliding rear window.
The cross member from the 86 bronco will be usable in your truck as it should be the same piece with the correct mount for the tranny. use the transfer case in the truck and just get your driveshaft lengths change or ones from a truck that has a C-6 in it. The difference in lengths between the C-6 and E4OD is roughly 7 to 8 inches of the transmissions, not sure how that relates to the driveshafts.
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Stock 1978 F250 Custom regular cab 4x4 with 351M and 4 spd.
1991 Bronco silver anniversary, 5.8L EFI, E4OD swapped for C-6, otherwise still stock.
What are you planning to use this rig for? if its strictly a wheeler then the C6 is a great choice. if you plan to drive this vehicle on the hwy much going with the od setup would be a better choice. regardless efi should be your goal for drivability and reliability.
The truck is definately going to be a wheeler, but if i got to drive it to the trails or to a bog, I would like it to operate correctly on the road as well. Instead of haveing the auto tranny, if I could find a 5spd, or a 4spd, Whats the challenges facing the manual tranny swap??
manual swap isnt any more complicated. its just locating the pedals and the tranny of choice. I would run either a zf 5speed or an NP435. both are very stout, the zf has a granny low first which is very nice.
