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Cometic C5401-070 MLS Cylinder Head Gasket Bore Chevy Small Block - 4.135 070 V8

(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

C5401-070
8 reviews
Sale Price

$126.70

Estimated ship date Friday, November 20

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Product Details

The Cometic C5401-070 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered for Chevrolet Gen-1 Small Block V8 engines. This gasket features a 4.135-inch bore diameter and .070-inch compressed thickness, making it ideal for performance builds requiring precise compression control.

Key Features:

  • Multi-Layer Steel construction for superior sealing and durability under high cylinder pressures
  • 4.135-inch bore diameter accommodates standard and mild overbore applications
  • .070-inch compressed thickness allows for custom compression ratio tuning
  • Undersized water ports designed for aftermarket cylinder heads, allowing custom port matching and flow optimization
  • Embossed stainless steel layers with viton rubber coating for maximum sealing
  • Resists blowout and withstands extreme temperatures in high-performance applications

Cometic MLS gaskets are the choice of professional engine builders and racers worldwide. The undersized water port design gives you the flexibility to machine ports to match your specific aftermarket heads, ensuring optimal coolant flow and eliminating potential leak paths. Compatible with Gen-1 Small Block Chevy engines including 265, 283, 302, 305, 327, 350, and 400 cubic inch variants when paired with appropriate aftermarket heads.

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

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In a rush to get my car up and running, Autoplicity had the best price on the items I needed, and in stock as well as shipped quickly. Just what I was looking for, thanks!

Great price. Minor problems with shipping because of UPS (dropped box and broke part, late delivery). Autoplicity sending me out replacement part.

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