Originally Posted By Cab_Burge
Originally Posted By lewtot184
check the main bores with a dial bore gauge to make sure they're per spec and especially not out of round. the vertical measurement on the last two blocks i checked was awful, the horizontal was in spec; basically egg shaped bores. this will screw up bearing clearance.
iagree Identify the problem accurately first before trying to correct it thumbs Take the block (and crank)to a good machine shop if you don't have access to a good dial bore gauge and outside micrometer thumbs twocents
I agree with all the other posts about having .004 crank to bearing clearances dry is way better than having .0027 or less dry twocents same thing on the rod clarnaces, a little looser will last a lot longer than a tiny bit to tight will shruggy

Took the block and rotating assembly to a machine shop. Block was line bored. They found the same thing, I would like to have.027 clearance than .004.