Factory 6.2 Internals.
 

What are they? Forged? Cast Iron?

A little bit of everything..

The 6.2 engineer answered a bunch of questions in this thread:
https://www.ford-trucks.com/forums/9...as-engine.html

Details of the motor:
2011 FORD SUPER DUTY BOASTS 6.2-LITER GAS ENGINE .: News

Key features of the new 6.2-liter V-8 gasoline engine include:

*Cast-iron engine block and four-bolt main bearing caps, with cross bolts, for durability
*Aluminum cylinder heads, with two valves per cylinder and two spark plugs per cylinder
*Cast-iron crankshaft, with dual-mode damper
*Forged steel connecting rods
*Cast-aluminum pistons, with cooling jets
*Single overhead camshaft with variable valve timing and roller-rocker shaft valvetrain
*Magnesium cam covers for lighter weight
*Stamped-steel oil pan
*Composite intake manifold
*Stainless-steel fuel rail; port-fuel-injected; mechanical returnless fuel system
*9.8:1 compression ratio
*E85/flex fuel capable