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Cometic C5402-040 MLS Cylinder Head Gasket Chevy Small Block Bore - for V8 040 4.160

(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)

Part of: Cometic MLS Cylinder Head Gasket Bore Chevy Small Block

Other options in this family: Cometic C5245-040 Cometic C5269-040 Cometic C5403-051 Cometic C5246-051 Cometic C5248-080

Manufacturer

Picture for manufacturer Cometic

Part Number

C5402-040
6 reviews
Sale Price

$93.64

2 left at this price

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Usually delivered within 2 days

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Product Details

The Cometic C5402-040 is a Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Generation 1 Chevrolet Small Block V8 engines. This premium gasket features a .040" compressed thickness and is designed for 4.160" bore applications with aftermarket cylinder heads.

Key Features:

  • Multi-Layer Steel (MLS) construction for superior sealing and durability under high compression and temperature
  • .040" compressed gasket thickness allows for precise compression ratio tuning
  • 4.160" bore diameter accommodates standard and slightly overbored small block Chevy engines
  • Undersized water ports provide flexibility for custom coolant passage matching and porting work
  • Designed for use with aftermarket performance cylinder heads
  • Stainless steel construction with Viton rubber sealing beads resists corrosion and ensures long-term reliability

Cometic's MLS gaskets feature multiple layers of stainless steel with elastomeric coatings that adapt to sealing surface imperfections while maintaining excellent combustion sealing. The undersized water ports on this gasket allow engine builders to custom-match coolant passages to their specific cylinder head design, making it ideal for performance builds and race 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

I really like how prompt the order went through and the quality of the part im getting

Great place to shop online. The best price on the internet and super fast delivery. Shop with Autoplicity, highly recommended.

Autoplicity leads the way ! Others take a lesson !! Great prices and excellent service !!!

Quick ordering, cheap prices, and an easy, excellent online shopping experience. Hence why I ordered again. Could work on shipping costs though.

Autoplicity had the best price for my Thule 867 roof rack cargo bag. It was easy to pay thru my Amazon accont and the order shipped within 24 hours of my placing the order.

I only gave them a 3 star raring on their shipping because I went on their site on Tuesday and the order said it had not been shipped. On Wednesday I received my shipment. The left hand needs to figure out what the right hand is doing. Other than that, GREAT

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