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Cometic C5331-040 MLS Cylinder Head Gasket Big Block Chevy Bore - 4.630

(Chevrolet Camaro 1967-72, Corvette 1965-74, Impala 1965-76, Malibu 1965-67, 1973-75, C1500 1990, Chevelle 1965-73, Blazer 1973-74 + 96 more models)

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

Other options in this family: Cometic C5331-080 Cometic C5816-045 Cometic C5332-040 Cometic C5760-040 Cometic C5434-066

Manufacturer

Picture for manufacturer Cometic

Part Number

C5331-040
16 reviews
Sale Price

$108.04

Estimated ship date Thursday, November 26

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Live-in-stock inventory

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Fitment guaranteed

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Product Details

The Cometic C5331-040 is a Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Mark IV Big Block V8 engines with a 4.630" bore diameter. This precision-manufactured gasket features Cometic's proven .040" (1.02mm) compressed thickness design, providing superior sealing performance and durability under high-performance and high-compression applications.

Key Features:

  • Multi-Layer Steel construction with multiple layers of stainless steel for maximum strength and heat resistance
  • 4.630" bore diameter designed for Big Block Chevrolet Mark IV applications
  • .040" compressed gasket thickness for precise deck height and compression ratio tuning
  • Viton rubber bonded to stainless steel layers for superior oil and coolant sealing
  • Resists corrosion, heat distortion, and combustion pressure better than traditional composite gaskets
  • Ideal for street performance, racing, and forced induction applications

Cometic MLS head gaskets are the preferred choice for engine builders working with aluminum heads, high-horsepower builds, and engines subjected to extreme thermal cycling. The flexible yet durable construction accommodates minor surface imperfections while maintaining a reliable seal. Compatible with BBC engines including 396, 402, 427, 454, and stroker variations with the appropriate bore size.

Products specifications

Fits

Chevrolet Camaro 1967-72, Corvette 1965-74, Impala 1965-76, Malibu 1965-67, 1973-75, C1500 1990, Chevelle 1965-73, Blazer 1973-74, C10 Pickup 1968-74, Caprice 1966-76, C10 1975-80, El Camino 1966-75, Monte Carlo 1970-75, Nova 1969-72 + 90 more models

Prop 65

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

Material

Multi-layer Steel

fast and easy

Excellent. Shipping was quick and prices were low.

Everything was fine. It just took a while to get to me.

Very Professional Team!

Fast, easy, cheap, and if it is the correct part even inventoried correctly.

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Items delivered as described. Perfect fit, good price. Items delivered before scheduled delivered day.

AWSOME !!!

I appreciate the phone call from THMotorsports before shipping the wrong item.

So far so good!

You can tell customer service is important to this company. Not only were the prices lower than other places but they communicate the status of the order and shipping very well. They obviously care what people think. I was suspicious of all the positive comments but decide to try them anyways. Very happy I did and definitely plan on buying from them again.

Price is the lowest price you can get anywhere. Customer service goes the extra mile helping me with my oder. Delivery was fast and products were as advertised. I will definitely order from Autoplicity again.

This company offers profesional service at a very competitive price. The header collectors i ordered were not available at the big speed outlets. The fast shipping was also a plus. I would recomend Autoplicity to anyone who needs parts in a hurry !

Easy to use web site. Quickly found what I needed. Smooth check out and SUPER FAST delivery. Couldn't ask for a better transaction experience. Bookmarked and for sure "GO TO" for next auto parts search. Thanks Autoplicity

Great exchange. Received product as described and in a timely manner. Thanks! Will Do business again

I am impressed with they mail order service. Recommended.

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