Whoops. Duplicate post.

 

The deicer was replacwd with the engine swap. Its a rebuilt longblock. Supposedly with the top hat style sleeves.

I've ben keeping constant vigil on the coolant level and temp gauge.

 

Try pulling your spark plugs. If one is cleaner than the other you found your leak.

 

update:

The (new) waterpump was leaking a small amount so it was replaced again. Also, the bleed screw on the upper rad hose was leaking, so that was replaced. The shop doesn't think it's a sleeve issue because it isn't throwing any codes for misfires. but it's still leaking about 1" of reservoir every other day.

 

Make them find the leak.