I'm interested in switching top end of my 1994 F150 4x4 302 over to a mustang 5.0l top end. Has anyone ever done this? What would be involved? Will i be able to use my stock computer? or would i need a mustang computer? Would a mustang computer work with my harness, would it plug right in? Would i be able to just length my TPS wires to work on the mustang TPS sensor? What else am i forgetting?

 

why? are you talking head swap or just intake swap? is your truck 2wd or 4wd?? is your truck mass air already?

 

Are you just talking about the differences between a 5.0 and an H.O. 5.0?

 

I'm pretty sure that the heads are the same.

 

yep the heads are identical so no power gain there.

 

I was goining to put edelbrock heads on it. But figured the mustang makes more power so would go with that syle intake manifold. Single throttle body instead of the dual throttle body. My truck is 4wd with the E4OD transmittion. I didn't think the heads were the same. Thought maybe the mustang heads would flow better. But thats good info. if there the same, thanks. How can i tell if my truck is mass air ? I would like to go this rount cause i found a supercharger for a mustang for a good price.

 

A mass air system will have the MAF sensor in the intake snorkel before the TB. Speed density EFI does not have this; It is open clear through (well, kinda! lol)from the filter to the throttle body.

 

FWIW.. another guy here dyno'd a 5.0HO motor he put in his truck with both the mustang and truck intakes... and the truck intake made more HP. If you compare the 2 intakes side-by-side off the vehicle that won't be a surprise, the truck intake has much bigger(volume) runners.

 

go with a 5.8 its same amount of work, can keep speed density and will produce more power

 

From what I have researched, you don't get near as much tuneability with the speed density over mass air... I think this applies to tuning processors (chips) and other electronic upgrades?

 

I have mass air on my truck, and i would be goin with a supercharger for a mustang. Thats why i want to go the mustang route

 

what applies to a mustang doesnt apply to a 4wd truck. if you build your truck with mustang parts your truck will not perform very well.

real question is what do you use your truck for? is it a mall crawler, weekend warrior or full time 4wheeler. do you have to commute long distances? Even with mass air in order to run an SC properly will still require a custom tuned chip

 

You can tune a speed density system just as well as the mass air system, but, speed density is very dependent on vacuum so you are limited on cam choices.
Both systems have their advantages and disadvantages.

As Kemicalburns pointed out to me before http://www.fordfuelinjection.com/ is a great place to read up on some info.

In a heavy vehicle like a truck, you are better off with the truck intake as it is better for torque, which you need.

 

from what i have heard, truck fuel injection is batch fired as mustang is sequential. So which one would be more powerful or better on fuel?

 

whats going to make power is the combo of parts you use not so much the efi system. better on mileage would be driving a car not a truck/bronco.