SBF 289-351W MLS Exhaust Gasket Set .030 Thick

The SBF 289-351W MLS Exhaust Gasket Set .030 Thick is engineered for serious small-block Ford engine builders and restoration specialists who demand reliable, leak-free exhaust sealing on classic and modern performance builds. Whether you're assembling a 289 cubic inch original engine, transitioning to a 351W stroker platform, or rebuilding after a complete machine shop refresh, this gasket set bridges critical compatibility across Ford's most iconic engine families. Proper exhaust gasket selection is non-negotiable—a failed gasket creates vacuum leaks, rough idle, and exhaust leakage that undermines tuning efforts and fuel economy gains.

Cometic's multi-layer steel (MLS) construction delivers superior durability and conformability compared to traditional gasket materials, especially under the thermal cycling stress of street and competition exhaust systems. The .030-inch thickness is precisely engineered to match OEM exhaust port dimensions on both 289 and 351W cylinder heads, ensuring zero compression loss and consistent clamping force across the gasket face. MLS gaskets resist blowout and maintain integrity through repeated heating and cooling cycles—critical when managing turbo boost, nitrous systems, or sustained high-RPM operation. The gasket set includes all necessary components for a complete exhaust manifold or header installation, eliminating the need for sourcing individual pieces.

This gasket set is ideal for engine swaps, vintage racing builds, and any application where 289-351W small-block Ford compatibility matters. Technicians and enthusiasts restoring late-1960s through 1980s Ford trucks, Mustangs, and performance vehicles will find this set essential for trouble-free header or manifold installation. Proper installation requires clean gasket surfaces, correct fastener torque sequencing, and high-temperature anti-seize on studs to prevent future removal headaches. Cometic's reputation for precision manufacturing ensures first-time sealing success, eliminating comebacks and customer frustration on both street and track applications.