326-455 Pontiac Intake G 1965-79

The 326-455 Pontiac Intake G 1965-79 from FEL-PRO is a precision intake manifold gasket engineered for classic Pontiac V8 engines spanning nearly two decades of production. This composite gasket seals the critical junction between the intake manifold and cylinder head, preventing vacuum leaks, coolant seepage, and combustion blowby that degrade engine efficiency and reliability. Whether you're rebuilding a legendary Pontiac engine or restoring a vintage muscle car, a quality intake gasket is non-negotiable for proper combustion chamber sealing and consistent air-fuel mixture distribution.

Manufactured from advanced composite material, the 326-455 Pontiac Intake G features a 0.06-inch thickness engineered to withstand peak cylinder pressures and thermal cycling without permanent deformation. The gasket accommodates 1.18 x 2.2 inch rectangular port openings, a standard specification across Pontiac's big-block and mid-block V8 lineup. FEL-PRO's Printoseal technology bonds the composite layers with precision, eliminating the need for sealant compounds while maintaining a consistent sealing surface. This design approach reduces installation complexity and ensures repeatable compression across all four intake ports, critical for balanced idle quality and responsive throttle response.

Mechanics and engine builders specify this gasket for Pontiac V8 intake manifold replacement across 326, 389, 400, 428, and 455 cubic-inch variants produced between 1965 and 1979. Installation requires simple removal of the intake manifold, cleaning of sealing surfaces to bare aluminum, and correct bolt torque sequencing—typically 20-25 foot-pounds for cast-iron manifolds. The lightweight 0.36-pound design ships as a complete kit, eliminating trips back to the parts counter. For anyone serious about preserving original Pontiac performance or achieving leak-free operation on a restomod build, the FEL-PRO 326-455 delivers proven reliability at a fraction of custom gasket costs.