Check your LS9 head gaskets
#1
Check your LS9 head gaskets
Found this thread on tech. Apparently GM is running low on LS9 gaskets, so they're using the 6.0L gaskets in LS9 packaging. So double check your gaskets when you get them.
CHECK you new LS9 gaskets - LS1TECH
CHECK you new LS9 gaskets - LS1TECH
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