1995 302-351 swap
#16
05-17-2014, 08:40 PM
#17
05-18-2014, 06:32 AM
Hotshot
You also need to budget for how you are going to tune that beast. A MAF upgrade and a custom tune is most likely going to required. Your $10K budget is going to get used up pretty quickly IMHO.
#18
05-18-2014, 05:15 PM
yea i was thinking about if the trans could hold up to it or not. its a auto too which i am thinking about maybe trying to switch to a manual but i don't know how that would go. i am mainly looking for a 400hp range for a engine with room to to grow off of that. the truck is MAF system so that is a plus, but only has a dana 44 front and 8.8 end the rear. so i am just trying to weigh my option right now because i know there is a lot of choices out here. but thanks for the info.
#19
10-02-2017, 07:12 AM
302 351 swap
The 5.8 uses the same engine mounts and bolts to the same tranmissions, but it requires a 28oz flexplate (5.0 has a 50oz version), and because it is physically wider and taller will require a 5.8 specific Y-pipe or modifications to the 5.0 Y-pipe. There are also a lot of unique parts on the 5.8 that won't transfer from the 5.0 so you will need a complete 5.8 EFI to swap in. I have done this swap and it's really not that bad, no wiring or computer changes necessary as long as your truck is mass air, and the 5.8 is a far better truck motor so it's easily worth the effort if you're pulling the motor anyway. Things you can re-use from the 5.0 are the accessory brackets and starter, injectors, throttlebody, and all sensors and actuators.
Thanks!
#20
10-02-2017, 10:25 AM
#21
10-03-2017, 07:49 PM
I put a 1996 E250 5.8 into my 1995 5.0 F150 and it was basically a matter of using the correct matching parts. Use the 1995 EFI.
The only really sticky bit I ran into was the EGR mismatch as Conanski said. I rigged mine to work as I didn't have a 1995 back 5.8 tube at the time. Need to replace that sometime. Probably right after what I rigged fails. It's held up fine for few years now though.
I found there's no good place on the 5.8 to put the 5.0 knock sensor though. I clamped it to the rear of the block. Seems to work. Ignore the IAT sensor in the middle of the 5.8 intake, use the 5.0 location out in the air intake.
The only really sticky bit I ran into was the EGR mismatch as Conanski said. I rigged mine to work as I didn't have a 1995 back 5.8 tube at the time. Need to replace that sometime. Probably right after what I rigged fails. It's held up fine for few years now though.
I found there's no good place on the 5.8 to put the 5.0 knock sensor though. I clamped it to the rear of the block. Seems to work. Ignore the IAT sensor in the middle of the 5.8 intake, use the 5.0 location out in the air intake.
#22
10-29-2017, 01:53 PM
#23
04-27-2018, 06:51 PM
Hey I’m new on this website and have read several different posts to try and get the answer I’m looking for and have answered about everything. I have a 96 ford with a 5.0 motor the motor has over 250000 miles on it and the tranny is getting week. I have found a 95 with a 5.8 motor with the same tranny as mine. Everything I read talks like this isn’t a big swap as long as it’s not a mass air flow. How do I know if it is or not? I would be getting the entire pickup to do the swap and understand I need to use the wire harness from the 5.0 but I shouldn’t need the 28 flywheel since they have the same tranny should I?
#24
04-27-2018, 06:56 PM
im not really wanting to quote you was just trying to get your attention on my question. You seem to have a lot of experience and knowledge on these matters.
#25
04-27-2018, 07:17 PM
Your swap is is very similar to those mentioned and you can use the '95 powertrain assuming the transmission is actually the same.. check door codes on both trucks.. you should see code E for E4OD. But you have to use the flexplate with the 5.8 motor as it is a difference balance than the 5.0, and there are a couple '96 only OBD2 parts you will have to track down, the crank balancer with a tone ring for the misfire sensor and the DPFE EGR tube. Neither of these parts will transfer from the 5.0.
#26
04-27-2018, 07:34 PM
#29
04-28-2018, 10:39 AM
Elder User
That's odd, I've never heard of the 5.8 with the 4R70w from the factory. Either that guys truck is actually a 5.0 or someone swapped that engine in. You need a flexplate for that combo, a mid-80's Crown Vic flexplate is what you need. But if it is indeed a 5.8 with a 4R70W, somebody already paired them with the correct flexplate.
#30
04-28-2018, 11:16 AM
That would be an assumption I woudn't count on, better to know what you have because the potential downside of not have the correct flexplate is total loss of the transmission.