New Cometic header gaskets.  MLS (Multi Layer Steel) gaskets are perfect for a leak free seal.  Gaskets are .030" thick compressed. Sold as a pair.  For all LS based engines running round port headers only.  Not for use with oval port, square port, and d-port manifolds or headers.

LS exhaust gaskets are matched to the exhaust manifold or header you are installing.  The LS heads are all machined flat to accept any of the LS style exhaust gaskets, whether it's oval, d or round port heads.  You are ordering them based the the headers/manifolds.