Cometic Oldsmobile Gen-2 Rocket V8 .027in MLS Cylinder Head Gasket - 4.270in Bore - C5811-027

The Cometic Oldsmobile Gen-2 Rocket V8 .027in MLS Cylinder Head Gasket - 4.270in Bore - C5811-027 is a precision-engineered head gasket with a 4.270" bore and .027" 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: 4.270"
• Thickness: .027" compressed
• Part Number: C5811-027

Verified fitment: Buick Apollo (1973–1975); Buick Centurion (1973); Buick Century (1973–1977); Buick Electra (1975–1980); Buick Estate Wagon (1973, 1975–1980); Buick GS (1972); Buick LeSabre (1972–1980); Buick Regal (1973–1977); and 60 more.