SKU: SKU: CGSC5740-027
The Cometic Chevrolet 4.3L Gen-1 90 Degree V6 .027in MLS Cylinder Head Gasket - 4.120in Bore - C5740-027 is a precision-engineered head gasket with a 4.120" 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.
Verified fitment: Chevrolet Astro (1985–1994); Chevrolet C10 (1985–1986); Chevrolet C1500 (1988–1995); Chevrolet C20 (1985–1986); Chevrolet C2500 (1988–1995); Chevrolet Caprice (1985–1990, 1992–1993); Chevrolet El Camino (1985–1987); Chevrolet G10 (1985–1995); and 37 more.