Gmc 671/871 Inj.Gskt. W/ Screen

The GMC 671/871 Injector Gasket with Screen by Mr. Gasket is a critical sealing component specifically designed for fuel injector installations on GMC 671 and 871 cubic inch engines. This gasket kit is essential for those rebuilding cylinder heads, replacing worn fuel injectors, or restoring classic GMC powerplants, as it prevents fuel seepage and maintains system integrity under boost and high RPM conditions.

This gasket assembly features an integrated screen that filters debris while providing a precision seal at the injector pocket. The thin, durable construction weighs just 0.45 lbs, ensuring a tight fit without over-compression that could damage fuel injector tips. Mr. Gasket engineered this kit to handle the thermal cycling and pressure spikes common in turbocharged and supercharged applications, where fuel system reliability directly impacts engine longevity and performance consistency.

Mechanics and enthusiasts restoring or upgrading GMC 671 and 871 engines will find this gasket set beneficial during head gasket replacement and fuel system service. Installation is straightforward—position the gasket and screen before seating the injector—and the compact size fits easily in any toolbox. Whether running stock fuel pressure or pushing high-impedance injectors on a modified fuel system, this gasket kit ensures leak-free operation.