Procharged efi motor in 2nd gen?

[dookie]

I just traded out my Big block for a 5.3 truck motor with AFR alum heads , and a pro charger setup , it spun the harmonic balancer on the crankshaft ,
So my question is , should i buy a eagle 1 crank and install (motor made 525 on pump gas and stock injectors ) or i have a 6.0 liter , that the heads , and cam will fit into , any info or advice on the two , and also the install , anyone else have any experience with installing this ? I also have all the wiring , computer and everything that goes with it ....