Just wondering if anybody knows if a brand new GM crank would require balancing? It is the specific crank according to the VIN from the donor vehicle, LY6 engine. My guess is when they need them at he dealership it would be off the shelf and just installed into the engine. Thanks

Ok thank you, I just read posts about different cranks being balanced for different Pistons. 5.3 to 6.0 and 6.2 etc. Hoping the crank they list is ready to go right in.

I’m having a tough time finding out if I am using the correct crank even from the GM dealer. I am using a new stock crank, stock rods, Pistons etc. The engine is a 2008 LY6 from a one ton van. There is a ton of different crankshaft part numbers. I figured any 6.0 gen 4 crank should work? I was going to have the rotating assembly balanced for piece of mind. The crank I bought from GM is a 12685653 which says it replaces the old number 12588613. Any ideas?

I find it weird how the 12685653 crank lists for an 09 LY6 but says it is not the right part for an 08?

Other than the cost I can’t see anything. I’m going to have it checked out. Thanks