SKU: SKU: CGSPRO1003T-066
The Cometic Chevy 350/400 Gen1 Small Block V8 Top End Gasket Kit-4.165in Bore-.066in MLS Cyl Head Gasket - PRO1003T-066 is a precision-engineered head gasket with a 4.165" bore and .165" 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 Century (1977); Chevrolet Bel Air (1970–1975); Chevrolet Biscayne (1970–1972); Chevrolet Brookwood (1970–1972); Chevrolet C10 (1970–1972, 1976–1980); Chevrolet C10 Suburban (1970–1972); Chevrolet C20 (1970–1972, 1976–1980); Chevrolet C20 Suburban (1970–1972, 1976–1980); and 48 more.