18 Deg Chevy Int Gasket HIGH PORT .090in THICK

The 18 Deg Chevy Int Gasket HIGH PORT .090in THICK by FEL-PRO is a precision intake manifold gasket engineered for small-block Chevrolet engines with 18-degree cylinder head architecture. This composite gasket seals the critical interface between the intake manifold and cylinder head, preventing coolant and fuel mixture leakage that would compromise engine performance and reliability. Purpose-built for high-port engine configurations, this gasket is essential for anyone rebuilding a classic or performance small-block Chevy, whether for street, strip, or restoration work.

Manufactured from composite material at 0.090 inches thick, the 18 Deg Chevy Int Gasket HIGH PORT .090in THICK features a rectangular port design measuring 1.25 x 2.15 inches, optimized for high-port manifold profiles that deliver superior flow characteristics. The 0.090-inch thickness ensures proper compression and sealing force while maintaining dimensional consistency across thermal cycling. FEL-PRO's quality control and material science enable reliable long-term sealing without blow-out, a critical advantage over inferior aftermarket alternatives that fail under sustained heat and pressure cycles.

Technicians and engine builders restoring or modifying small-block Chevrolet motors will find the 18 Deg Chevy Int Gasket HIGH PORT .090in THICK indispensable for maintaining OEM-quality sealing. Compatibility is limited to 18-degree head configurations with high-port intake designs; confirm your cylinder head casting and manifold port style before purchase. Installation is straightforward—position the gasket dry on the manifold, torque the intake bolts in a cross pattern to factory specifications, and verify no vacuum leaks after startup. This gasket is a wear item; replace it every engine rebuild or if coolant seepage appears around the manifold perimeter.