hoohaa Posted June 25, 2007 Share Posted June 25, 2007 I'm trying to figure out what crank main bearings I need to buy for my VG30E rebuild. I want to buy Nissan so that I can buy the proper standard for each bearing. My main journals read "2221" from the front of the block to the rear. The crankshaft has these number stamped into the front weight: I'm thinking that's 2100, but in the FSM I thought the numbers were supposed to be stamped upside down from how those are stamped, i.e. readable above the crank centerline rather than below. If this is the case, I'm assuming I need to buy one "4", one "3", one "2", and one "1", respectively. Is this correct? What exactly are the different grades based on? One other question: is it essential to run only the proper grade of pistons in a VG30 block if we're dealing with used pistons and honed cylinders? If so I need to buy a couple #2 pistons. Quote Link to comment Share on other sites More sharing options...
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