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Cometic C5401-027 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 4.135

(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

C5401-027
7 reviews
Sale Price

$95.07

Estimated ship date Friday, November 20

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Product Details

The Cometic C5401-027 is a Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Generation 1 Small Block V8 engines. This precision-manufactured gasket features a 4.135-inch bore diameter and .027-inch compressed thickness, making it ideal for performance and racing applications requiring precise combustion sealing.

Key Features:

  • Multi-Layer Steel (MLS) construction provides superior sealing and durability under extreme cylinder pressures
  • 4.135-inch bore diameter accommodates standard and slightly overbored small block Chevy engines
  • .027-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
  • Embossed stainless steel construction resists corrosion and maintains seal integrity through repeated heat cycles

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 machine custom coolant passages to match your specific cylinder head configuration, ensuring optimal cooling performance in high-output 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

This copany shipped my order promptly. I would do business with them again.

Good comunication best prices on the web

Awesome dealer for auto-parts. Fast shipping and they sell good products at great prices! Bought set of club racing brake pads for $15 less than anywhere else on a Saturday and they were here the following Wednesday. I'm in Memphis and it was the week before Christmas. I was very impressed and pleased!

Web site was clear and easy to navigate, the price was the best I could find, and the item was shipped promptly. I would recommend this retailer to anyone.

Easy

Thanks for the great service, best prices, and fast shipping!!!

I was searching around for a K&N cold air intake for my Tahoe. After searching Autoplicity had the lowest price hands down. I ordered on a Wed. evening, and it was on my door step Friday afternoon with standard shipping. I couldn't of asked for better service. The price was $100 cheaper than everyone else. I will be using Autoplicity again.

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