[cozog]

It's supposed to be 1deg. tonight and wind chills in the -5 to -10 range.

LT1 bird is in non-insulated 3-car garage next to external wall.

Radiator removed in October. Water system flushed by running water from the top of the block (t-stat location) and draining out knock sensor and other drain plug. I then let all the water drain and refilled with straight anti-freeze.

Engine has never been turned over since rad was removed, just refilled, so no water pump action to move the coolant around.

What are the odds of the block freezing/cracking? What can I do to prevent it?

TIA!!!

This post has been edited by cozog: Jan 21 2011, 05:23 PM

[00 SS]

1. Put a 100 watt bulb in a drop light and place it near the bottom of the engine, turn it on and throw a heavy blanket or two over the whole motor with the light underneath. I've done this with the car outside and kept it from freezing.

2. Ethylene glycol at 100% strength will not freeze faster than 50/50 mix with water. What you gve up is heat transfer (cooling) capacity as the % glycol goes up. This is why straight water cools better that 50/50 mix in the summer.

[cozog]

1. Put a 100 watt bulb in a drop light and place it near the bottom of the engine, turn it on and throw a heavy blanket or two over the whole motor with the light underneath. I've done this with the car outside and kept it from freezing.

That's what I ended up doing. 2 hand-held work lights on each side and a pair of 500w halogen work lights underneath. Then I closed the hood and made an offering to the racing gods. It's been ridiculously cold lately... -4 on Sat and -1 on Sun. Only had 8 out of 23 days get above 29deg in Jan. 7 days had lows below 10deg. Aren't we supposed to be on track in a couple months?!?