Intake Manifold Gasket Set SBM 318/340/360

The Intake Manifold Gasket Set SBM 318/340/360 from Cometic Gaskets is engineered for Mopar small-block engines requiring a reliable, OEM-quality seal between the intake manifold and cylinder head. Whether you're rebuilding a classic Dodge or Plymouth muscle car, performing a high-mileage refresh, or upgrading cooling system integrity on a street-driven vehicle, this gasket set addresses the common failure point where coolant and oil passages meet cast iron surfaces. Intake manifold gaskets deteriorate over time due to thermal cycling and pressure cycles, leading to coolant seepage, rough idle, and potential engine damage if left unchecked.

Cometic's reputation in gasket engineering stems from advanced material science and precision manufacturing. This gasket set utilizes elastomer composite construction designed to withstand the thermal shock and pressure variations inherent to small-block Mopar duty, maintaining a consistent seal across the 318, 340, and 360 cubic-inch engine family despite subtle casting variations between model years. The gasket profile is engineered to compress evenly across the manifold face, preventing localized hot spots that lead to premature failure and coolant loss. Proper torque sequence and head surface preparation—essential for any seasoned mechanic—ensure maximum gasket lifespan and eliminate potential oil or coolant weeping.

Restoration shops, performance builders, and do-it-yourself enthusiasts trust Cometic gasket sets for their durability and fitment consistency across the classic Mopar catalog. This set is ideal for anyone performing a top-end rebuild, replacing aged gaskets as part of preventative maintenance, or upgrading to a modern intake manifold on a 318/340/360 platform. Installation is straightforward for mechanics familiar with small-block fastener protocols; allow adequate cooling time before torquing to specification and perform a pressure test post-assembly to confirm seal integrity. Compatible with original and reproduction aluminum or cast-iron intake manifolds designed for these displacement variants.