I've got a 71 F-350, I pulled out the 390ci and trans. I've found an 83 T-bird with a 5.0.
I've allready found the proper brackets and motor mounts, my only concern is the 5.0 has trottle-body injection. What are the pros and cons of this engine over a multi-port 5.0 (say out of a mustang)?

Eventually, If I wanted to add a supercharger would that trottle body injection become a problem?

I could just go with a mustang 5.0 but I already bought the T-bird.

Thanks in advance for your many responses.
Chris

 

Chenders

I'm going trough a similar conversion. I just bought a '71 F-350 Ranger XLT that was part way through a conversion. It originally had a 390 and C6 trans. It's 390 went bad and the owner started to install a 460 and C6 from a donor truck.

He lost interest and I bought it from him. I had a freshly rebuilt 400M and C6 in a '77 Ranchero that I wanted to put into a truck. I'm almost done with the conversion.

Having gone through this, and being familiar with the size and weight of the F-350, I would be concerned that the 5.0 wouldn't have enough torque to confortably power a heavy truck. It would work fine and you could safely drive it, but you would always need to rev the engine to get farther into the power band. If this is what you want, then you made a good choice.

The TBI would work fine. Since you already own it then go ahead and use it. Keep in mind that there are many more aftermarket parts available for the Mustang multi-port injection.

If you're going to use a Mustang's motor then get an '89 or later. Mustangs converted to roller lifters in '87 and I believe they converted to a mass-air injection system in either '88 or '89. This was a major improvement over the speed-density system of '86 & '87 (I'm not entirely sure of the years, that's why I would use the system from an '89, just to be sure). Also make sure you get the entire wiring harness and the fuel lines to/from the fuel tank. It's best to get a donor car so you can take everything you need.

The benefit of the '89 & newer Mustang motor is that not only do you get the roller cam/lifters and the mass-air system, but it is very easy to add an aftermarket supercharger because they just bolt right on. The supercharger kits include everything you need.

Make sure that you add an intercooler to cool the compressed air. It goes between the supercharger and intake. By cooling the compressed air you get more power and can avoid the detonation common with most supercharger systems.

I haven't done it yet, but I would like to supercharge my '68 mustang. My wife drives an '88 Volvo 760 Turbo and it has an intercooler. It's intercooler is about half the size of a standard radiator and actually sits in front of her radiator. It should be easy to install one of these on a truck.

Good Luck.

Bruce

 

I didn't plan to use this truck for pulling and hauling. I thought about going with the 1/2 ton supension from a F100, but circumstances made me discount that idea. I was able to find the front supension from a 77 F-250 with the single piston caliper (rare). I had new kingpins pressed in and I'm about to get the rear-end regeared. I know that this is a hard subject, I also want to find out the best ratio. I don't know what the T-bird's ratio is, but I most likely will make the truck's ratio close to the T-bird.

 

Hi, i just swap my 4.9l engine for a 302, and i was reading a lot, and i find out that the 302 from a T-bird is no High Output, and it is under 140 HP, not like the mustang 302 that in 87-89
is arrount 200 hp, anyhow i get mine from a bronco, because i have a bronco either, so i think that way a can miss, but i see a mustang engine and is a lot diferent.