OK I have a 89 5.0 bronco I was changing my thermostat and part of the bolt hole broke off. Enough that the housing won't bolt down anymore. I have a complete engine out of a 86 f150. The intakes are the same aren't they? Or is the 86 different somehow?
Don't want to bolt it together just to find out something won't work

 

If they are both the same fuel delivery system, they should be interchangeable. Meaning if you have fuel injection on each truck (and they are both 5.0s), then you should have no problem.

 

There both fuel injected the only I've had them both off the only difference I can see is the writing on the plenum.

 

Yes all the 5.0EFI truck intakes are the same mechanically, the early versions had the words "Electronic Fuel Injection" embossed on top of the upper while the later versions had "Ford 5.0 EFI" or "Ford 5.8 EFI" depending which engine they were for. 5.0 and 5.8 intakes are not interchangable.