It lists the parts. Sourced myself. Paul Nelson uses the same brand pistons in his 1140whp Evo.

Aries Forged pistons. Capable of withstanding 44psi
Eagle Forged pistons. Steel, Capable of 600 whp
Eagle Forged crankshaft. Steel, Capable of over 1000whp
AMS Race balance shaft removal. Removes balance shaft belt.
New oil pump
ARP main and head studs