Here is where you make or break a build. Oil pressures are made or lost here. How many times do you here of the guy with a high vol or high pressure oil pump that makes 80 lbs of oil pressure cold but 30 lbs once it warms up? Here is why. His bearings are giant oil bleeders! If this step shows a problem, you need to report this to the engine machine shop and have them get this corrected. If it means turning a crank, so be it. Same on rods, its goto be right. Remember, high vol/pressure oil pumps are bandaids over a problem, not a fix.

OK, take and remove at least a couple main bearing caps and slip a chunk of PLASTI-GUAGE axially onto the crank journal. Reinstall the main cap/bearing and torque the bolts in 3 steps upto the recomended torque of 70 FT/LB. DO NOT TURN THE CRANK! Remove these main bearing caps and use the plasti-guage paper to read the width and write down your results and on what main you read from. If you do 2-3 of them and they are within tolerance you can stop here and repeat the process with 3-4 of the rod caps. Just be carefull not to drop a piston on the floor! when you take the rod cap off and there are no rings installed the piston will zip out of that cylinder and bounce acrossed the garage floor in the blink of an eye! Keep clean gloves on for this bearing and piston touching, cleanliness is godliness.