Cometic C5249-030 MLS Cylinder Head Gasket Bore Chevy Small Block - 4.200 030 V8

The Cometic C5249-030 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Generation 1 Small Block V8 engines. This high-performance gasket features a 4.200-inch bore diameter with a compressed thickness of .030 inches, making it ideal for performance builds and engine rebuilds requiring precise compression control.

Key Specifications:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• 4.200-inch bore diameter accommodates standard and mild overbore applications
• .030-inch compressed gasket thickness
• Designed for 18-degree and 23-degree cylinder heads
• Round bore configuration
• Includes steam holes for proper coolant circulation
• Compatible with Generation 1 Chevrolet Small Block V8 engines (283, 302, 327, 350, 400)

Why Choose MLS Technology:

• Multiple layers of stainless steel provide exceptional strength and flexibility
• Superior resistance to combustion pressure and thermal cycling
• Maintains seal integrity under extreme temperatures and pressures
• Ideal for both street performance and racing applications
• Reusable in many applications when properly installed

Cometic Gaskets are manufactured in the USA using advanced materials and precision manufacturing processes. This gasket requires proper surface preparation—cylinder heads and block deck surfaces should be smooth with a 50 RA or better finish for optimal sealing. Always follow manufacturer's torque specifications and installation procedures for best results.