Cometic Chevy Gen-1 Small Block V8 .056in MLS Cylinder Head Gasket - 4.200in Bore - C5273-056

The Cometic Chevy Gen-1 Small Block V8 .056in MLS Cylinder Head Gasket - 4.200in Bore - C5273-056 is a precision-engineered head gasket with a 4.200" bore and .056" 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: 4.200"
• Thickness: .056" compressed
• Part Number: C5273-056

Verified fitment: Buick Century (1977–1981); Buick LeSabre (1978, 1982); Buick Regal (1977–1981, 1986); Buick Skylark (1977–1979); Chevrolet Bel Air (1955–1975); Chevrolet Biscayne (1958–1972); Chevrolet Blazer (1969–1974); Chevrolet Brookwood (1958–1961, 1969–1972); and 76 more.