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That sure makes it interesting here in Idaho, that's for sure. With aluminum blocks here, a block heater of some sort is a must!



I'm in Utah, and we have below zero days. I always warm mine with a block heater before start up if it's under 50 degrees. I also won't bring the RPM's up past 1800 until the oil has warmed to 100 degrees. I wouldn't be concerned about the roundness of the bore, it will just scare you. My motors usually leak down at 0-2% once they take a set. I use zero gap rings also.



Do you ever come over to Boise to race?
What kind of block heater do you prefer?



I like the Steff's in pan, weld in heater. I had my oil filter come off in Woodburn, and it blackened a few bearings, so I never made it.