Broke a piston in my 6.0 and cracked the block, so there's that

I've had a LS1 block laying around my garage for a while that I stripped apart. While disassembling I found someone put the #3 main cap on backwards, that is why it wouldn't turn after "rebuilding". Turned it around and spun the crank with my fingers nice and smooth.

Anyways, since my 6.0 is trashed, is there going to be an issues putting my combo on a 5.7 with stock pistons?

My combo is as follows:
PRC 243 cnc heads
EPS 231/234 .617/.615 lift 112 lsa
Fast 102mm with Nick Williams 102 tb
GM white 36lb injectors


Basically wondering if I should probably need to flycut, I'll obviously triple check before final assembly but it'd be nice to know ahead of time.

Anyone have a combo similar to this? I made 408rwhp with this setup on my 6.0 and the car ran 11.28 @ 3450lb

 

I don't know about the fly cut but I would replace the bearing.

 

#3 is the trust bearing, check the trust preload and was the motor run at all ? I would fly cut the piston with that cam, at least check the piston to valve clearance min. .080"int &.100"ext. and it might help if you run a thicker head gasket to help on the clearance.