Cometic C5804-030 MLS Cylinder Head Gasket GM Ecotec Bore - L42/L61 89mm

The Cometic C5804-030 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket designed specifically for GM L42 and L61 Generation 1 and Generation 2 ECOTEC engines. This precision-engineered gasket features a .030" (0.76mm) compressed thickness and an 89mm bore diameter to ensure optimal sealing and combustion chamber performance.

Key Features:

• Multi-Layer Steel (MLS) construction provides superior sealing and durability under high-compression and boosted applications
• Designed for GM L42 and L61 ECOTEC engines (2002-2008 applications including Chevrolet Cavalier, Cobalt, HHR, and Saturn Ion)
• .030" compressed gasket thickness allows for precise compression ratio tuning
• 89mm bore diameter matches factory specifications
• Embossed stainless steel layers with elastomeric coating ensure maximum combustion sealing
• Excellent resistance to extreme temperatures and pressures

Cometic's MLS gaskets are engineered to handle the demands of performance engines, providing reliable sealing for both stock rebuilds and modified applications. The multi-layer design accommodates thermal expansion and head movement while maintaining consistent clamping pressure across the entire sealing surface.