Cometic BBC MLS Header Gasket Set 2.130 Round Port 20056PRB Nitrous Wrench

Nitrous Wrench

Exhaust port and bolt pattern are raised 3/32'' over GM L98 cylinder heads

Extremely Accurate

Polyurethane deflects far less that soft rubber

077 in Wall

Cometic BBC MLS Header Gasket Set 2.130 Round Port 20056PRB Nitrous WrenchCOMETIC MLS (Multi Layer Steel) Exhaust Gaskets are designed for extreme cylinder pressures. MLS Exhaust Manifold Gaskets maintain a torque set and resist corrosion. They will not burn through or push out. MLS Exhaust Manifold Gaskets withstand different combinations of cylinder head and exhaust manifold materials. No sealants are required. This exhaust gasket features 2. 130" Round Port. Vehicle Applications: 1987 1991 GMC R3500 1973 1974 Chevrolet