| I am in the process of assembling my short block but I've run into a bit of a snag. main bearings 1-3 are all coming out with about .0015 clearance using green plastigauge. The 4th main is showing .001 clearance which is a bit tight according to the specs. I ordered my bearings based off of the grade stampings on the block/crank. mains 1-3 came out fine: 
#4 is the tight one 
So I'm guessing the solution is to order a larger grade #4 bearing but I find it odd that its on the tight side using the stampings on the block/crank.
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