Cometic C5129-040 Oldsmobile 370/371 Gen-1 Rocket V8 MLS Cylinder Head Gasket

The Cometic C5129-040 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Oldsmobile 370 and 371 cubic inch Gen-1 Rocket V8 engines. This precision gasket features a .040" compressed thickness and is designed for a 4.190" bore diameter, making it ideal for both stock rebuilds and performance applications.

Key Features:

• Multi-Layer Steel (MLS) construction for superior sealing and durability
• .040" (1.02mm) compressed gasket thickness
• 4.190" bore diameter specifically sized for Oldsmobile 370/371 engines
• J2 Golden Rocket configuration for proper port alignment
• Manufactured by Cometic Gaskets, a trusted leader in high-performance sealing solutions
• Resists blow-out and provides excellent combustion sealing under high cylinder pressures

Cometic's MLS gaskets utilize multiple layers of stainless steel with elastomer coatings to provide maximum sealing performance while accommodating minor surface imperfections. This gasket is an excellent choice for enthusiasts restoring classic Oldsmobile vehicles or building period-correct performance engines with the legendary Gen-1 Rocket V8 powerplant.