MLS Exhaust Gasket - BBF 1.250 x 2.080 Oval Port

The MLS Exhaust Gasket - BBF 1.250 x 2.080 Oval Port from Cometic Gaskets is engineered for serious big-block Ford enthusiasts building high-performance exhaust systems. This multi-layer steel (MLS) gasket seals the critical junction between your cylinder head and exhaust manifold, preventing exhaust leaks that rob horsepower and compromise engine efficiency. Whether you're rebuilding a vintage big-block or upgrading manifold flow on a modified stroker, a quality exhaust gasket is non-negotiable for reliable sealing under thermal cycling and boost pressure.

MLS gasket construction uses multiple steel layers with elastomer facing to provide superior crush-strength and thermal stability compared to traditional composite gaskets. The 1.250 x 2.080 oval port geometry is precisely dimensioned for big-block Ford cylinder heads, ensuring optimal sealing against the manifold flange without material overhang that can restrict exhaust scavenging. The gasket's robust construction handles repeated heating cycles, vibration, and the mechanical stress of high-flow exhaust pulses without relaxation or failure, making it ideal for turbocharged, supercharged, or naturally aspirated applications running sustained load.

Mechanics and builders trust Cometic gaskets for street cars, race engines, and rebuild projects demanding leak-free assembly. This gasket is compatible with BBF (big-block Ford) platforms including 385-series, 427, 460, and modified variants, fitting standard oval-port cylinder head configurations. Installation requires clean, smooth mating surfaces and proper torque sequencing on the manifold bolts to achieve full gasket compression; avoid reusing old bolts, and apply anti-seize to prevent galling on stainless or coated fasteners for optimal sealing longevity.