SKU: SKU: CGSC15523-051
The Cometic Pontiac 428/455 V8 .051in MLS Cylinder Head Gasket - 4.380in Bore - No Water Holes - C15523-051 is a precision-engineered head gasket with a 4.380" bore and .051" compressed thickness.
The Cometic Multi-Layer Steel (MLS) head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Featuring Multi-Layer Steel (MLS) construction, this gasket uses multiple embossed steel layers that conform to surface irregularities and maintain a positive seal. Precision CNC-machined to exacting tolerances, this gasket seals combustion, water jackets, and oil passages simultaneously — eliminating the need for multiple gaskets or sealing compounds.
Verified fitment: Buick LeSabre (1975); Oldsmobile 88 (1975); Oldsmobile 98 (1975); Oldsmobile Custom Cruiser (1975); Pontiac Bonneville (1968–1976); Pontiac Catalina (1968–1976); Pontiac Executive (1968–1970); Pontiac Firebird (1971–1976); and 7 more.