alabama cylinder heads is selling these on ebay

http://tinyurl.com/yo42aa

for $355 delivered. it says: "THESE AFTERMARKET NEW CASTINGS ARE REDESIGNED TO BE STRONGER THAN OEM" and it comes with a 90 day warranty. 90 days is pretty short for a new head if you ask me.

i called them and i was told that they get a rough casting from overseas and do the finish machining themselves. i have yet to speak tot he head tech guy about these. is delta the only company that makes aftermarket heads for the 4ZD1?