I was just wondering if these are brand new genuine GM ls6 243 castings since they dont have a core? some one told me that they are welded up ls1 heads but there site says that they are 243 castings. just trying to figure out why they are so cheap.

 

they are the lq9 heads. but they make their own combustion chambers. i beleive they bought several thousand sets of heads.

 

intereasting. i figured that they were something like that since ls6 heads are so expensive from the dealer. now i have to figure out what i can sell for $2000 to get them.