Hey SLEeper, welcome to ZillaMotorsports. Officially.
Did the upgrade to Zilla'* top end from last year, and tossed my 180 stant for a 180 INTENSE thermostat for better flow.
Figure I added somewhere around 15-25 horsepower with this top end, and I don't have a rattling coupler any more.
Gaskets were great. When you look at these pics, remember that this is nearly 130,000 miles on STOCK LIM GASKETS with the green stuff. The only problem was the split block seals, but they weren't leaking. I've personally never seen them split like that before.
I did notice a bit of varnish in the lifter valley, then realized it looked like overheating at some point in it'* life. That suspicion was backed up when I found one of the ECT'* was aftermarket, and the coolant bypass fitting was already replaced with steel.
Anyway, here'* Day 2'* pics:
One of these days in the near future, I need to strip down the SC I just removed today, port and polish it, rebuild it, and replace the coupler so I have a spare for both cars.
Car'* got more bawls now. Eli came by for the test drive.