· FIT FOR: Avalanche Express GMC Sierra 1500 GMC Yukon Intake Manifold Gaskets Set · OE/INTERCHANGE PART NUMBER: MIS16340 · SPECIFICS: Manifold Gasket Set lead to driveability problems such as rough idling and stumbling on acceleration. Head Gasket prevents liquids and gases from escaping into adjacent cylinders and the surrounding oil and coolant galleries.The purpose is to seal the cylinders to ensure maximum compression and avoid leakage of coolant or engine oil into the cylinder.They are designed without a metal core, to allow engine builders to trim the gasket for exact fit on modified ports.
