I am thinking about swapping my 300 I6 to a 351w and i was wondering what all i would need. I know i need to swap computers out and such but will i need to put a bigger fuel pump on it? What else will i need?

 

I've even been toying around with the idea of puting a 5.4 in it.

 

The year,and tranny would be helpful information in answering this.

 

1990 F-150 2wd. E40D if i remember correct. I just put a diff tranny in it this summer. I dont remember if i put the same model of tranny in. either way a 351w should bolt right up to any of the I6 tranny's becaues they have the same bolt pattern`

 

I dont think the exaughst would line up though. The tranny should yes but other things might be more of a pain such as fuel lines radiator vaccuum lines and vaccuum containers. I wouldnt know where the I6s stuff is dont have one i have a 5.0 V8. Get the chiltons and compare?

 

yea i was plannin on replacing the radiator if i did the swap. Exhaust wouldn't be a problem. i'm pretty good at welding exhaust up. I dont think the vaccum part of it would be to bad long as i had a chiltons or helms. Where should i get the OBD? salvage yard? What OBD should i run 1 or 2?

 

do yourself a favor, make your life easy and put a 4 barrel on it, you will run into enough problems as it is, and you were thinking of obd 2....you are making alot more work that is needed

 

naaaa, i dont want a 4 barrel on it. Just not what im looking for. I'll go ahead and look for 5.8 out of a 93 or somthing.

 

Do you have a lot of $$ into this truck already? If not, I would't do this swap. You are going to have to replace more parts than you think. Prices are very low on these trucks, so I bet you could buy one with the 351 in it for less than this project is going to cost you. For more info, check out the full size Bronco forum.

 

I havn't put much money into it. Just the tranny. Havn't had any motor problems other than i had to put new sparkplug wires. I'm just looking for a little more power. I don't want to make it fast i just need a little more power to tow and a few other things. I dont want to get rid of this pick up cus it has quite a bit of sentimental value to me. so i want to put a 351w. And i known its going to cost money but its better than buying a whole new truck to me because you cant find many pick ups like mine that have as good of body as mine. My truck has no cancer anywhere and no dents anywhere. Plus i've put a custom interior into it and i wouldn't want to get rid of after i put all that work into it.

 

Yeah, you can keep the transmission in place...

You need a like year 351 with all the goods attached to it, the computer, radiator, the mounts, torch the I6 perches out of the way....bolt it down and plug the engine harness into the firewall. Done.

I think the exhaust pipe after the exhaust manis is the exact same piece, so some finaglin' there and that's solved.

If you just had to have a modular, you theoretically could use a early 90s Panther car 4.6L OBD1 setup and make the 5.4L work with that, but you're on your own there.