Thought I would check the accuracy of the crank grind before assembly. The rule of thumb is to have 0.001'' clearance per inch of journal. To do this I used this plastigauge kit
Fitted the main bearing shells to the block
I will open this oil way up in the shell with a dremel before final assembly
Oiled the shells in the block
Removed the protective oil from the shells that fit into the bearing cap, then pushed them into place
Applied a "rod" of plastigauge to the main journals
Then fitted the caps. It's important not to oil the shell or journal at this point as it will give a false reading. Also don't turn the crank!
To measure the bearing crush or clearance, it's just a matter of taking a reading with the chart
The clearance is 2 1/2 thou which is within spec
Pete