Originally Posted by Jerry
...not much thermal expansion in the 220 deg F range. these arent cylinder heads which see combustion temperatures.


Thanks for the reply! Respectfully, even at 220*f or so! (the surfaces are closer to the fluid temperature than each parts core) what would be the amount of expansion over the span of the length of the girdle in the fore and aft plains? but let's just use from room air temp to 220F