I was wondering if anyone knew if the valve cover patterns are any different for an LS1 as they are LS9, or any other LS? Will a valve cover labeled as LS1 fit any other LS motor or are their differences that will make a cover that fits an LS1/6 not fit an LS2/3/7/9?

Thanks

 

all LSx covers should be the same except the early ones (98 & prior) as they got a perimeter bolt pattern instead of the center