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Cometic C5400-075 Chevrolet Small Block MLS Head Gasket Bore - Gen-1 V8 4.125

(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

C5400-075
4 reviews
Sale Price

$126.70

Estimated ship date Friday, November 20

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Product Details

The Cometic C5400-075 is a Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Chevrolet Gen-1 small block V8 engines. This precision-engineered gasket features a .075" (1.9mm) compressed thickness and a 4.125" bore diameter, making it ideal for performance builds and engine rebuilds.

Key Features:

  • Multi-Layer Steel (MLS) construction provides superior sealing and durability under high compression and extreme temperatures
  • 4.125" bore diameter accommodates standard and slightly overbored small block Chevy configurations
  • .075" compressed thickness allows for precise compression ratio tuning
  • Undersized water ports enable custom port matching to aftermarket cylinder heads
  • Engineered for use with aftermarket performance heads
  • Embossed stainless steel layers with elastomer coating ensure consistent clamping pressure

Cometic's MLS gaskets are the preferred choice of engine builders and performance enthusiasts who demand maximum reliability. The undersized water ports give you the flexibility to port-match to your specific cylinder heads for optimal coolant flow. Compatible with Chevrolet 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 cubic inch Gen-1 small block engines.

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

East to order

Best price around. Great Communication. Fast shipping. What else can I ask for?<br>I have already purchased again from them.

Best pricing I found anywhere on the part I needed, quick shipping, no hassle. Definitely going to be a repeat customer.

Very fast shipping, lowest prices on the web.

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