Thread: The problem: overheating at idle in drive – stalling when hot.

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Originally Posted by blueoval67

Its not necessary to run a 180 stat in the old cars and, don't drill any holes in it, the factory never did nor should you!

I've found the 180 stats to work well in weather from 16 degrees F to 109 degrees F.

As far as drilling a single hole in the stat goes, it's a small modification that makes life easy as far as potential air locks go and creates no other problems.

Not many cars would be modified if we stuck to stuff that only factory engineers did.
If we did, we'd be restorers and not hot rodders....