4.400 MLS Head Gasket .040 - Ford FE

The Cometic Gaskets 4.400 MLS Head Gasket .040 for Ford FE-Series engines is a multi-layer steel cylinder head gasket engineered for high-performance and rebuild applications. This gasket delivers consistent compression sealing across the combustion chamber with a 4.400-inch bore diameter and 0.040-inch compression thickness, making it a direct replacement for stock and modified Ford FE big-block engines in hot rods, muscle cars, marine applications, and engine rebuilds.

MLS (multi-layer steel) construction provides superior sealing integrity compared to conventional cork or asbestos gaskets, particularly under elevated boost, nitrous, or high-rpm conditions. The 0.040-inch thickness specification is critical—it must match your engine's deck height and cylinder head geometry precisely to maintain proper compression ratio and prevent blow-by. Cometic Gaskets' engineering ensures this gasket handles the thermal cycling and pressure demands of both naturally aspirated and forced-induction Ford FE platforms, from 427 to 455 cubic inches. Proper installation requires clean, flat mating surfaces and torque specifications per Ford's technical manual.

This gasket is essential for engine builders, restoration shops, and enthusiasts rebuilding classic Ford FE engines or upgrading worn stock gaskets. Whether you're freshening a stock 427 or assembling a race-prepped big-block, verifying your specific bore diameter and compression thickness before purchase ensures proper fit and sealing. Sold individually—one gasket per order.

Ford FE-Series engines span multiple model years and displacements, so consult your engine's technical documentation or machine shop to confirm the 4.400 bore and .040 thickness match your application before finalizing this purchase.