Cometic Cadillac L37/LD8 Northstar V8 .066in MLS Cylinder Head Gasket - 94mm Bore - LHS - C5717-066

The Cometic Cadillac L37/LD8 Northstar V8 .066in MLS Cylinder Head Gasket - 94mm Bore - LHS - C5717-066 is a precision-engineered head gasket with a 94mm bore and .066" compressed thickness for the Left-Hand Side (LHS).

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: 94mm
• Thickness: .066" compressed
• Position: Left-Hand Side (LHS)
• Part Number: C5717-066

Verified fitment: Buick Lucerne (2006–2011); Cadillac Allante (1993); Cadillac DTS (2006–2011); Cadillac DeVille (1994–2005); Cadillac Eldorado (1993–2002); Cadillac Seville (1993–2004); Pontiac Bonneville (2004–2005).