i found this on ebay
GM CHEVY AVEO 1.6 DOHC CYLINDER HEAD YEARS 04-07 1YR WA - eBay (item 150513058017 end time Feb-26-11 12:29:13 PST)

and this one
GM/CHEVY/AVEO 1.6 DOHC CYLINDER HEAD GASKETS & BOLTS - eBay (item 150394740945 end time Feb-27-11 13:13:43 PST)