Cometic Buick Big Block V8 .030in MLS Cylinder Head Gasket - 4.312in Bore - C5753-030

The Cometic Buick Big Block V8 .030in MLS Cylinder Head Gasket - 4.312in Bore - C5753-030 is a precision-engineered head gasket with a 4.312" bore and .030" 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.

• Material: Multi-Layer Steel (MLS)
• Bore Size: 4.312"
• Thickness: .030" compressed
• Part Number: C5753-030

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.