That's nothing to worry about...it's GM's new EGR design. Just pull the plug and injector wire for that cylinder.Originally posted by KLHAMMETT
But whne they melt like that, the head looks like this!!!
http://a9.cpimg.com/image/DD/E6/25251549-9ca8-02000155-.jpg
Originally posted by lazaris
The 1026 still exists and its made for use with the 14 bolt pattern blocks and aluminum heads. The interior fire ring is made of copper to compress when torqued as to not imprint on the head.