I am the original owner of my 86 GT Convt.
It only has 50k on it but the aluminum brackets are oxidized, Radiator is full of solder bloom. Steel mounting brackets are corroded.; Typical issues for a 25 year old car
I disassm. the "front" of the enginge and restored all the drive assc., Installed new serpentine belt and hoses, New air box. All parts are NOS or Ford Motorcraft. All steel brackets were replated in original Cad.
I am now going to pull the upper plenum and re anodize the valave covers, refinish plenum, EGR spacer, new EGR valve, Throttle pos. Hopefully It will look new again for another 25 yrs.