Alright guys so I'm hoping someone can help me I'm thinking about swapping my blown 2.5 with the 4.0 but not really sure what that Intel's has anybody on here ever done it do u have to swap fuel pump the ecu etc... any help would be appreciated

 

my advice is to have the 2.5 totally rebuilt with a aftermarket camshaft

and turbo it

 

Yeah, maybe I'll just put another 2.5 in it for now and rebuild the one in it with forged internals and throw some boost at it, it will definitely be a learning curve for me tho not really that familiar Single over head cam engines really only rebuilt older small blocks it there any good turbo kits out there or would I just be better off to piece it together myself
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Welcome to the forum

In the mid-1980's fuel injection became standard equipment, and you need a computer(fast calculator really), in order to do fuel injection.
So when vehicles started coming with computer engine controls it added a layer of work when swapping engine sizes.
And at this same time Automatic transmissions also got/needed computer control, adding another layer to the mix

You still have the "will it fit?", in the engine bay, and what transmission fits and drive lines, which is the mechanical aspect, and 2.3/2.5l, 3.0l and 4.0l all used different transmission bolt patterns, so no cross swap.
Then you have the "what computer and wiring harness to use", added to that, and splicing in power connections to the new harness

Since you can go out and buy a stock Ranger 4.0l, upgrading a 2.3l/2.5l or 3.0l Ranger to a 4.0l was never a popular swap when you consider the time and money it will take.

Same time and almost the same money would be involved in swapping in a V8(5.0l) so that was a more popular choice when looking at larger engine size for Rangers

 

if you can find 2.3 turbo out of a thunderbird turbo coupe

that would be a better option instead of piecing parts together