Exhaust Gasket BBC W/AFR Magnum 24Deg Heads

The Cometic Gaskets Exhaust Gasket BBC W/AFR Magnum 24 Degree Heads (C15443-030) is a precision multi-layer steel manifold gasket engineered for big block Chevy engines paired with AFR Magnum 24-degree cylinder heads. This gasket delivers a reliable seal at the exhaust header interface, where extreme temperatures and combustion pressures demand material integrity and consistent performance across extended use cycles.

Designed with a 2.017 x 2.227-inch oval port configuration that matches AFR Magnum head port geometry, this gasket accommodates the specific flow characteristics and mounting specifications of these high-performance cylinder heads. Multi-layer steel construction provides thermal stability and resists gasket creep—a critical factor in forced-induction and high-output applications where header vibration and temperature cycling can degrade inferior materials. The gasket's engineering ensures a tight seal without requiring re-torquing after initial heat cycles, reducing maintenance intervals on engines in regular use.

This gasket is essential for big block Chevy builders restoring or upgrading AFR Magnum 24-degree equipped engines, whether for street performance, drag racing, or marine applications. Purchased individually, it suits single-gasket replacement or complete exhaust manifold overhaul where OEM gaskets have failed. Cometic Gaskets specializes in precision gasket solutions for performance engine builders who require exact port matching and validated heat tolerance.

For BBC AFR Magnum head conversions, correct gasket selection prevents exhaust leaks that compromise scavenging efficiency and engine tuning. This verified part guarantees fitment confidence and sealing performance in both naturally aspirated and boosted big block Chevy builds.