pr0zac wrote:
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jsup wrote:
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CentralCoaster wrote:
Simple, if you want temps to hold above 160 you need a higher rated stat. It surprises me that 160 on an LT1 isn't enough to keep the heater working.

The cooling fans' "OFF" setting should be at least 10F or more above the tstat rating, which means the "ON" setting has to be even higher.

The LT1 cooling system is a different animal than the traditional small block, so the common knowledge there doesn't really apply.

How is it different, I mean I get the reverse cooling but how is it drastically different in terms of how the physics of combustion change or not.

I've had a 160 and have had heating problems, the inside of the car just would not get hot. We went to a wedding in October, and it wasn't all that cold, and the car would not warm up inside.

The 180 is much better in that respect.

that cold water is hitting the head first instead of warmed water from the cylinder coming up to the head.. its like a diesel when its first started in the cold.