Im going to pull the pan on a 4200 Vortec to check for a possible rod knock. This noise just started within the last month so I stopped driving it. I'm not going to remove the mains since I cannot remove just one cap, it's one ladder-style brace and those bolts are TTY. My question is, the rod bolts are 18 ft lbs plus 110 deg, can these bolts be reused for the sole purpose of checking clearance with plastigage? Will get new bolts for the new bearings if the crank is ok. I'm going to get a mic on the journals as well but would like to use the plastigage also.