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Cometic Gasket Part # CGSC5399-080

Cometic Chevy Small Block Brodix (All 12-23 Deg Head) 4.030in Bore .080 inch MLS-5 Head Gasket - C5399-080

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The Cometic Chevy Small Block Brodix (All 12-23 Deg Head) 4.030in Bore .080 inch MLS-5 Head Gasket - C5399-080 is a precision-engineered head gasket with a 4.030" bore and .030" 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.

  • Material: 5-Layer Multi-Layer Steel (MLS)
  • Bore Size: 4.030"
  • Thickness: .030" compressed
  • Part Number: C5399-080

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.

Free U.S. standard shipping on qualifying orders $199+. Special order and made-to-order items can't be cancelled or refunded once ordered.

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