The LS skunk2 IM will fit the itr/ b16 head actually but the coolant lines are just different.

The last b18c I rebuilt was back in 2001 when the only skunk2 IM was for a gsr head... Lots has changed since then, learning everything I can to make sure I end up with what I want. But like you said, you don't care. Lol

thanks anyway.