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Cometic C5400-051 MLS Cylinder Head Gasket Bore Chevy Small Block - 4.125 051

(GMC G2500 1979-86, K1500 1979-86, C1500 1979-86, K2500 1979-86, Jimmy 1970-86, C3500 1979-86, K2500 Suburban 1979-86, K3500 1979-86 + 168 more models)

Manufacturer

Picture for manufacturer Cometic

Part Number

C5400-051
8 reviews
Sale Price

$98.87

Estimated ship date Friday, November 20

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Product Details

The Cometic C5400-051 is a Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Gen-1 Small Block V8 engines. This high-performance gasket features a .051-inch compressed thickness and 4.125-inch bore diameter, making it ideal for custom engine builds and performance applications.

Key Features:

  • Multi-Layer Steel (MLS) construction provides superior sealing and durability under high combustion pressures
  • 4.125-inch bore diameter accommodates a wide range of small block configurations
  • .051-inch compressed thickness allows for precise compression ratio tuning
  • Undersized water ports designed for aftermarket cylinder heads, allowing custom port matching and coolant flow optimization
  • Compatible with Chevrolet Gen-1 Small Block V8 engines including 265, 283, 302, 305, 327, 350, and 400 cubic inch variants

Cometic's MLS gaskets feature multiple layers of stainless steel with specialized coatings that conform to cylinder head and block surface imperfections while maintaining exceptional blow-out resistance. The undersized water ports provide flexibility for engine builders to custom-match coolant passages when using aftermarket heads, ensuring optimal cooling system performance in high-performance and racing applications.

Products specifications

Fits

GMC G2500 1979-86, K1500 1979-86, C1500 1979-86, K2500 1979-86, Jimmy 1970-86, C3500 1979-86, K2500 Suburban 1979-86, K3500 1979-86, C15/C1500 Pickup 1967-74, C2500 1979-86, K1500 Suburban 1979-86, G25/G2500 Van 1967-74 + 164 more models

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Material

Multi-layer Steel

Have not received item yet but company is very responsive with fast shipment. Excellent price too.

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Ordered Sunday and recieved product Tuesday .. What more can u ask for? Great Seller!

The Best Pricing online period! The shipping was very reasonable with great communication and tracking number proviced. My parts were boxed well and arrived right on schedule. This was my first purchase with Autoplicity but will for sure not be my last.

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Had a great first experience with Autoplicity. I ordered my package late in the day on Wednesday and it was at the front door Thursday! Another big plus is that their prices are hard to beat. Won't have a problem ordering from them again!

Product was shipped super fast. And product was in a well packaged box and everything was there. I would do business with them again in the future. Highly recommended and lowest prices!!!

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