IJ.;1722020 said:
Just means that the shop is talking shit about the balance Tracey, Mic it up and if it's in good condition and within spec just order up the correct bearing shells from Toyota.
Toyota use a select fit bearing system, there's a chart in the TRSM that give the Rod/Block sizes and the Crankpin sizes in an X/Y Format, you follow an X line for say the Rod ID across to the Y line for the Crankpin diameter and where they meet is the exact bearing you need to order.
IJ's bearing selection instructions are correct ASSUMING you have a virgin crank that's never been turned in a machine shop. You find that out by doing what IJ said when he told you to "Mic it up". WRT balancing, stock Toyota balancing is just fine for 99% of the cases. Where you might start having some concerns on getting the assembly balanced is if you're going to add a lot of aftermarket parts.
An aftermarket flywheel + aftermarket rods + aftermarket pistons + a turned crank = a good candidate for a professional balance
Another case will be if you intend to rev the engine well past that 6000 rpm mark, then factory stock may not be good enough. If you do get the ASSEMBLY balanced the shop will need the crank, rods, pistons, pins, clips, flywheel, and balancer to do it right. As I said, though, normally this isn't necessary.
John Stricker