The only person in the last month to ask about forged pistons got this reply:
"No, unfortuantely the rods are cast, the pistons are cast, and the crank is nodular iron. The SII has hypereutectic pistons from the factory, but that'* all. They all hold up remarkably well to modifications though.
At the moment the only connecting rods available are one-off custom made. Our rods are an odd width so they don't match up to any off the shelf rods known.
I can get you a forged crank, pistons, and billet rods but they're not cheap and recommended only for those going to extreme power levels.
Thanks for the inquiry and let me know if you have any other questions."
I guess I should work on my sales pitch, seems weak.
In anycase, I sent the rods out to a number of shops and of the 3 I asked 3 said they were cast with no hesitation. I've found a ton more data to support the idea that the pistons are also cast than I've found to say otherwise. Matter a fact in more than 4 years of playing with these engines, researching parts, and talking with people about these engines I've never seen anything more than personal opinion (almost exclusively related to BC) to suggest they are anything else.
I'd really love for it to be true. I honestly would because it would save me tons of money on pistons. But until we get some kind of proof I wouldn't bet my engine on it. If someone is in an investigative mood it would be great if you post what you find.
Stuff got done.