Intake Gasket - GM LS Z06 .045

The FEL-PRO Intake Gasket - GM LS Z06 .045 (Part Number 1208-2) is a precision composite intake manifold gasket engineered for Chevrolet LS-series engines, including the high-performance Z06 platform. This pair of gaskets features a 0.045-inch thickness and rectangular port configuration measuring 1.45 x 2.45 inches, designed to seal the critical interface between the intake manifold and cylinder head where combustion chamber pressure and intake vacuum demand absolute reliability.

FEL-PRO's Printoseal composite material combines fiber reinforcement with elastomer properties to maintain a consistent seal across thermal cycles and engine load variations. The specified thickness of 0.045 inches is engineered to accommodate LS-series manifold mounting tolerances while delivering uniform compression under the precise clamp load of factory fastener sequences. For high-output LS engines—particularly boost applications or sustained track duty—gasket failure at the intake manifold junction can cause vacuum leaks, idle quality degradation, and measurable power loss. This gasket set addresses that critical sealing point with factory-equivalent specifications.

This gasket pair is essential for engine builders, performance technicians, and LS platform enthusiasts performing intake manifold removal, replacement, or surface reconditioning. Whether reinstalling stock manifolds after cylinder head work or transitioning between intake designs, using OEM-specification replacement gaskets ensures the intake system remains sealed and responsive. Proper gasket selection prevents vacuum-induced running issues that can mask or complicate diagnostic work downstream.

LS-series engines dominate both factory performance platforms and the aftermarket build community. The Z06 variant represents the upper tier of factory LS output, where every sealing interface matters to thermal management and combustion control. Gasket integrity directly impacts idle stability, cruise-load response, and diagnostic repeatability, making OEM-level replacement gaskets a non-negotiable component of any serious LS rebuild or maintenance procedure.