High-density fiber facing material attached to both sides of a perforated steel coreResists blowout and burnout from high-temperature exhaust and far stronger than basic paper gasketsEngineered and manufactured to meet or exceed manufacturer specificationsApplication-specific design ensures a perfect fitValidated for fit, form and functionFel-Pro Performance Gaskets keep engines sealed under the most grueling racing conditions, from stock car racing to drag racing to off-road.