Pretty basic question - does anyone know of a set of 76cc heads for the stock bore LS1?

I know AFR's website says they make a head with a 76cc combustion chamber - but when I called they said they were never made and aren't available...


Thanks,
Zach

 

http://www.gmhightechperformance.com...ide/index.html

Very first one listed states they are also available in a 76cc.