Where did the Stealth head crack and is it not repairable?

I don't bother following the Stealth-related posts often; is this a common problem with them?

I don't recall the Edelbrocks having cracking issues, etc., although I've seen first-hand how IMO they still need to have the guide clearances & valve jobs checked & corrected OOB.

Performance-wise there shouldn't be any significant difference with the same level of prep work, considering Brandon's R&D for port & chamber design was simply sending an Edelbrock Performer RPM to China along w/ an OEM iron head and giving the foundry the following instructions:
1. Make new head rook rike Ederbrock on inside
2. Make new head rook rike Chrysrer iron head on outside



(My apology to all Asian and Asian-American readers who take offense to my accent parody. )

EDIT: Just re-read the orginal post and saw where the OP stated "One of them cracked where the early castings were prone to crack (end exhaust port into the spark plug hole, not really cost effective to repair)."