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🇨🇦 Proudly Canadian! All orders ship from Canada. No Tariffs. No hidden fees. No surprises.


SKU: SKU: CGSC15270-051
The Cometic Chevy Mark-IV BB V8 .051in MLS Cyl Head Gasket-4.620in Bore - C15270-051 is a precision-engineered head gasket with a 4.620" bore and .051" 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: Chevrolet Bel Air (1970–1975); Chevrolet Biscayne (1970–1972); Chevrolet Blazer (1973–1974); Chevrolet Brookwood (1970–1972); Chevrolet C10 (1973–1980); Chevrolet C10 Suburban (1973–1980); Chevrolet C20 (1973–1986); Chevrolet C20 Suburban (1973–1986); and 45 more.
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