Gasket Kit - LS Intake Manifold

The Chevrolet Performance Gasket Kit for LS Intake Manifold (Part Number 19256623) is a factory OEM replacement gasket set engineered for LS-series engines requiring precision intake sealing. This set of eight O-ring gaskets matches original GM specifications and dimensions (1.416 x 2.95 inches, rectangular port configuration) to restore proper compression and fuel mixture delivery on stock and lightly modified LS intakes.

LS-series engines depend on consistent intake-to-head sealing for optimal combustion and boost containment. Degraded OEM gaskets allow vacuum leaks, rough idle, and unmetered air bypass—conditions that compromise both street performance and engine stability during sustained load. Rubber composition in this gasket kit withstands LS thermal cycling and maintains sealing pressure across repeated heat cycles, critical for engines running daily or at the track. The rectangular port geometry matches Chevrolet Performance OEM intake designs, ensuring drop-in fitment without modification.

This kit serves LS engine owners performing intake removal for cam swap, valve cover service, or intake porting—situations where gasket replacement is necessary for proper reassembly. Eight gaskets provide coverage for a complete intake manifold set, eliminating the need to source individual pieces. Builders restoring LS platforms to reliable baseline performance benefit from factory-matched gasketry that requires no fitment work and integrates seamlessly with original GM intake hardware.

Chevrolet Performance parts carry OEM-level quality control and are engineered to match factory tolerances, offering long-term sealing reliability without the cost of complete intake replacement. For LS owners maintaining stock intake geometry or upgrading manifold runners, this gasket kit restores factory seal integrity.