Rough weekend, while addressing a cracked head I found my #4 cylinder cracked all the way across to the intake valve. I keep a very close eye on my temp and normally run around 160 to 180 degrees and 200 degrees when stopped at a light. This engine has about 6000 miles on the rebuild, the pistons are .060 over could that have something to do with the crack, any suggestions to the possible cause would be greatly appreciated, thanks Mike
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