SKU: M77MS19981
UPC: 027067993151
MPN: MS19981
The MAHLE ORIGINAL/CLEVITE Header Gasket Set for Small Block Chevy with 1.800 x 1.600 inch rounded rectangle ports is a critical sealing component engineered for reliable exhaust manifold performance. This pair gasket set features a steel core graphite construction, delivering the durability and heat resistance required for consistent compression and emissions control on small block engines running moderate to high power levels.
The 1.800 x 1.600 inch port dimensions match the specific runner configuration of popular SBC exhaust manifolds, ensuring proper gasket seating and preventing exhaust gas leakage under load. Steel core construction provides structural integrity under thermal cycling and combustion pressure, while graphite facing materials accommodate minor surface irregularities common on cast iron manifolds. This is a pair set, covering both cylinder head to manifold interfaces on the engine.
Engine builders, restoration specialists, and SBC enthusiasts choose OEM-equivalent gasket sets when rebuilding or refreshing exhaust systems to avoid leaks that compromise tuning and emissions performance. Proper gasket selection is non-negotiable during any manifold R&R, as mismatched port dimensions or inferior materials lead to exhaust leaks, rough idle conditions, and potential code triggers. This MAHLE gasket set provides the fitment accuracy and material quality expected from a premium domestic supplier trusted in both street and competition builds.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.