6.0 truck rods
Rpm is a bigger killer of rods than hp. The rod beam can handle a lot of compressive force, the rod bolts big end are more likely to fail under tension when yanking the piston down from TDC.
If buying pistons I would buy aftermarket rods, have to have it balanced anyway.
Scat rods are forged steel with ARP bolts, can be had for under $300. Budget H beams are between $4-500. I personally would not be putting stock rods into anything performance oriented, much less a boosted build pushing 800hp.
It's gonna cost you more money and aggravation in the long run by cheapening out on stuff now than buy spending a few more bux and doing things right the first time. Taking out an engine, rebuilding it and reinstalling it costs time and money.

