SKU: SKU: CGSC5755-086
The Cometic Buick 400/430/455 V8 4.400 inch Bore .086 inch MLS-5 Head Gasket - C5755-086 is a precision-engineered head gasket with a 4.400" bore and .400" compressed thickness.
The Cometic 5-Layer Multi-Layer Steel (MLS) head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Featuring 5-Layer Multi-Layer Steel (MLS) construction, this gasket uses five embossed steel layers delivering exceptional clamping load distribution for high-output applications. 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 Centurion (1971–1973); Buick Century (1973–1974); Buick Electra (1967–1974); Buick Estate Wagon (1970–1974); Buick GS (1968–1972); Buick LeSabre (1970–1974); Buick Regal (1973–1974); Buick Riviera (1967–1974); and 3 more.