Silicone beading applied around each port creates a tight-leak proof sealResists wicking and can withstand 600-degree heatCellulose and nitrile provide sealing and durabilityDesigned for stock portsPort dimensions measure 2.13" high by 1.20" wide
This stock ultra-seal intake manifold gasket set is made of a cellulose and nitrile material that is less compressible with a 2.13" port height and 1.20" port width with a thickness of 1/16". This material has an anti-stick coating, plus a silicone bead around each intake port except where noted for a tight, leak-proof seal. These gaskets are a great solution for intake-sealing problems associated with the small sealing areas between ports. This set comes complete with all necessary seals, can be trimmed to fit modified ports, and fit aluminum heads and manifolds.