Header Gasket Set - BBF 429/460 Retangle Port

The MAHLE ORIGINAL Header Gasket Set for BBF 429/460 with rectangle port design delivers OEM-grade sealing for Big Block Ford engine applications requiring precision exhaust manifold gaskets. This pair of gaskets features a steel core graphite construction rated for 2.020 x 2.070-inch rounded rectangle ports, engineered to maintain consistent compression across thermal cycling and high-heat engine operation.

The steel core construction provides structural integrity under the extreme temperature fluctuations inherent in exhaust header applications, while graphite facing material ensures reliable sealing without galling or binding at the manifold interface. The rounded rectangle port geometry matches OEM specifications for BBF 429 and 460 engines, eliminating guesswork during installation. This gasket set is designed as a pair, covering both driver and passenger-side headers in a complete seal package.

Engine rebuilds, performance modifications, and high-mileage restoration projects on classic and vintage Big Block Ford platforms benefit from OEM-specification gasket replacement. Whether rebuilding a 429 or 460 for street application, marine service, or restoration accuracy, proper gasket selection prevents exhaust leaks that compromise performance and allow uncontrolled oxygen ingress into the combustion chamber. MAHLE ORIGINAL gaskets maintain the precise port geometry needed for uninterrupted flow and sealed operation.

BBF 429/460 engines remain the choice for displacement-dependent applications where peak torque and low-end response are priorities. Proper gasket specification—matching the exact port shape and facing material—is critical to preserving the integrity of engine sealing over thousands of miles. The MAHLE ORIGINAL MS19997 gasket set addresses this requirement with proven OEM engineering and material science.