I have tried searching on google and here but I have not been able to find anything.
Will an S5 TII hood fit an S4? Any modifications needed or is it straight bolt on?

 

For clarification, I have an 87 TII but with an 88 N/A hood.

 

It's a straight bolt on. The only difference is the emission stickers underneath and the front rubber seal is a bit different but equally functional. You can always swap the front rubber seal from your S4 NA hood if you want to get exact.

 

Awesome, that is exactly what I was looking for. Thank you, sir.

 

Also be careful about putting a steel hood on an aluminum latch.
My steel t2 hood wont open without a persons help.

 

The only steel TII hoods I've ever heard of were off S4's.