To be used with all manifold applications, and with cylinder head application M-6049-L302/L303/X302/X303/X304/X305/Y302/Y303 with or without EGR 1 2 3. GASKET THICKNESS � .004 = 0.070". NOTES: 1 Synthetic rubber Print-O-Seal� (Fel Pro Inc.) bead around ports provides improved sealing. 2 Redesigned for improved port location and allows mild porting. 3 Teflon coated, steel reinforced. NOTE: None of the following race quality gasket kits include rubber end seals. Use RTV sealer or production end seals.