Cometic MLS Header Gasket - SB Chevy 262-400 - 1.450" x 1.480" Port R040002L 600 exhaust valves this head

600 exhaust valves this head moves tremendous volumes of air through conservative runner volumes

or a differential reading which indicates the difference between the two making this product ideal for comparing boost and fuel pressures on your vehicle's engine to ensure engine performance controls are functioning as intended

limited lifetime filters are high flow and high performance

180 Degree

2-Piece Rear Main

Cometic MLS Header Gasket - SB Chevy 262-400 - 1.450" x 1.480" Port R040002L 600 exhaust valves this headCOMETIC 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 1. 450" x 1. 480" Port. Vehicle Applications: 1980 1985 GMC C2500 Suburban 1980