Cometic Pontiac V8 .188in Fiber Intake Manifold Gasket Set - 1.141in x 2.063in Rectangle Port - C5778-188

The Cometic Pontiac V8 .188in Fiber Intake Manifold Gasket Set - 1.141in x 2.063in Rectangle Port - C5778-188 is a precision-engineered intake gasket with a compressed thickness of .188".

Cometic Fiber intake gaskets provide a leak-proof seal between the intake manifold and cylinder head. Featuring Fiber construction, this gasket uses a high-performance composite material with excellent sealability across a range of surface finishes and clamp loads. A proper intake seal is critical for maintaining correct air-fuel mixture, vacuum, and coolant routing — making these gaskets essential for any engine build or intake upgrade.

• Material: Fiber
• Thickness: .188" compressed
• Part Number: C5778-188

Verified fitment: Buick LeSabre (1975); Oldsmobile 88 (1975); Oldsmobile 98 (1975); Oldsmobile Custom Cruiser (1975); Pontiac Bonneville (1967–1978); Pontiac Catalina (1967–1978); Pontiac Executive (1967–1970); Pontiac Firebird (1967–1979); and 8 more.