Intake Gasket Set - SBF 351C-400M 1.515 x 2.140

The MAHLE ORIGINAL/CLEVITE Intake Gasket Set MS20074 for SBF 351C-400M engines delivers OEM-grade sealing performance for small-block Ford Cleveland and modified applications. This composite intake manifold gasket kit features precise rectangular port dimensions of 1.515 x 2.140 inches and a 0.06-inch thickness engineered to maintain critical compression sealing at the intake manifold junction—a high-pressure interface where combustion seal integrity directly impacts engine efficiency and prevents vacuum leaks that degrade idle quality and fuel economy.

Manufactured to OEM specifications by MAHLE, a supplier trusted across the automotive and powersports industry, this gasket set ensures repeatable sealing without requiring custom fabrication or workarounds. The composite material formulation resists gasoline, coolant, and oil exposure while maintaining dimensional stability across thermal cycling—critical for engine builds subject to sustained heat cycles. The 1.515 x 2.140 rectangular port geometry matches both stock and mildly modified 351C and 400M intake manifolds, eliminating the guesswork common with aftermarket alternatives that vary in thickness or port alignment.

This intake gasket set is essential for engine rebuilds, head gasket replacement procedures, or intake manifold removal for carburetor service on classic and modified small-block Ford platforms. Whether restoring a 351C-powered pickup, preparing a street engine, or refreshing a marine application, proper intake sealing prevents the lean-running conditions and vacuum-leak diagnostics that consume troubleshooting hours. OEM-equivalent gaskets eliminate the false economy of budget alternatives prone to premature failure.

Small-block Ford 351C and 400M platforms remain widespread in hot rod, marine, and industrial engine applications. Maintaining proper intake manifold sealing is non-negotiable for reliable operation. The MS20074 is the direct-fit solution for these engines, backed by MAHLE's reputation in OEM engine sealing components.