This writeup was provided by James Cahill

Ok, although this isn't a huge deal, I figured I would let you guys know just whats involved to do this.

Parts list-
(1) 22552986 $42.86 hose assy
(1) 22570078 $80.49 tank
(1) 25697430 $9.91 cap
(1) 14076658 $8.07 panel
(2) 14076668 $5.24 insulator
(2) 14076669 $3.78 insulator
(2) 14076670 $3.78 retainer
(3 or 4) quick nuts (I have a bunch if you need them)
Radiator $200
Splice tube $5
Various nuts, bolts, hose clamps, etc

Total $371.93

You can always find a radiator somewhere else cheaper, I picked it up at Advance Auto. If you wanted to do it on a budget, pick up all the stuff at a junkyard.

Here's everything you need-


Everything bolts right in. The bar at the bottom holds the two upper retainers/bushings to the radiator support. The tank uses existing holes. Its a little difficult to remove the belt once the tank is in, but I wasn't using a sepentine belt tool, it may be easier with one. You will need to use the old lower hose in conjunction with the new one. Trim them to fit and splice them together. I'm going to have one custom made at my local rad shop. The spliced one is holding up fine though, no leaks. You need to make sure there is no kinks or tight bends so it won't burst under pressure. You also won't be using the low coolant level switch in the new tank. I can get the part number for the tank without it, just let me know.

Some finished pics-
You can see the capped off pressure relief fitting on the tank in this one-


Heres the old overflow line in use as the new one-


The old upper hose hooks right back up-


The whole system-


Doing this is good for about 15-20 degrees cooler. At idle it will run about 210. As soon as theres airflow, it drops to about 200 and when the fan kicks in, its down to 180-185 in about half a second. The gauge moves extremely quick! This wasn't a difficult job. I did it in about three hours from shutting off the car to starting it back up. I also had some rad fitment issues because the car was in an accident several years ago and the rad support isn't exactly straight anymore, so it will go even quicker if you know what you're doing.