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Got a quick question about the PAW 454 Rotating Assemblies....when you order one, and have it pre balanced, they say all the bearings are mached to the crank...Does this mean all the clearances are already done for you, so all you have to do is bolt it all together and torque everything? Im thinking about dropping the $1100 for the kit so I can just drop it in and be done with it (Im not good with all that plastigauge).
 

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you can't really take somebody else's word for how much clearance is in a bearing unless you hire them to find it for you. PAW, like many of the others, is a production line type outfit. they machine stuff to spec ppus or minus a tolerance. If you get a low tolerance crank journal matched up with a high tolerance bearing in a high limit bearing housing or main bore, the clearance can be out of spec, maybe way out even though each individual size is "within spec."

I've built PAW stuff before, didn't see that it was any worse or better than other production shop stuff. If you want to have your stuff right and use PAW or other prod shop, take your stuff to a local machine shop and ask them to measure it for you. take the crank, block with bearings torqued down in main caps, piston/rod assemblies with bearings in rods, ask them to mike the journals and use a dial bore gauge in the bearings.
 
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