"According to Ken Miele, those blocks are cast in Carmagnola Italy by Teksid. They are owned by Fiat, who also owns Ferrari. They cast all the Ferrari blocks as well. He claims with proper rods and pistons the block will easily handle 1000 HP."
"Go and read the Al Papitto interview in the January '08 edition of 'Muscle Mustangs'. It will shed some light on the subject. He states that the Teksid blocks, made from '92-'99, are the most desirable, but he has had no trouble with the later blocks. He also states that the aluminum blocks are better than even the '03-'04 Terminator blocks because of their four-bolt mains and can support more horsepower than the two-bolt main cap Terminator block."