I learned this the hardway, do not leave your bare block on the stand for too long. Funny Story, I had my block completely machined in December of '05, I finally got my crank and everything else done, so I went to go and put it together, tightened the main caps, and the crank by itself would not even spin, I had to use a breaker bar to budge it!! Anyways long story short, the entire block was warped because of its own weight pushing it down while on the stand!!! Needless to say it was junk, luckilly the crank wasnt damaged. Its probably common sense, but i didnt really think of it!! Neways Aewsome job on the build man and the best of luck!!!!!!!!!!