RBS carries a full line of SCE reinforced graphite exhaust gaskets. These gaskets are made from heat resistant graphite steel clad material using military technology and will seal the header to the head with no problem.
Fits 8.3 MBR/Fontana/Arias Hemi heads as well as some 10 liter heads. Gasket port measures 2.50" x 1.750". Gaskets are sold in pairs. Exhaust gaskets are set up with ten 3/8" stud holes.