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Cometic C5434-120 MLS Cylinder Head Gasket Chevy Big Block Bore - for V8 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)

Manufacturer

Picture for manufacturer Cometic

Part Number

C5434-120
8 reviews
Sale Price

$231.71

Estimated ship date Sunday, November 22

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Live-in-stock inventory

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Fitment guaranteed

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Product Details

The Cometic C5434-120 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Chevrolet Mark-IV and GM Gen-V/VI Big Block V8 engines. This high-performance gasket features a .120" compressed thickness and a 4.630" bore diameter, making it ideal for aftermarket cylinder head applications.

Key Features:

  • Multi-Layer Steel (MLS) construction for superior sealing and durability
  • 4.630" bore diameter accommodates standard and performance builds
  • .120" compressed gasket thickness for precise compression ratio tuning
  • Undersized water ports allow for custom port matching and optimization
  • Designed for aftermarket cylinder heads on Big Block Chevy engines
  • Compatible with Chevrolet Mark-IV, GM Gen-V, and Gen-VI Big Block V8 platforms

Cometic's MLS gasket technology provides exceptional resistance to combustion pressure and thermal cycling, making this gasket an excellent choice for street performance, racing, and high-boost applications. The undersized water ports give engine builders the flexibility to customize coolant flow to match specific cylinder head configurations.

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

It was a easy transaction and shipping was pretty fast. Very happy with this company, and will order again!!! ( actually already have)

All seems great. Had item in stock as on there website and it was shipped quickly.

I received my Borgeson steering shaft today for my 1990 dodge 1st gen. This is where I found the lowest price for the product. I was also very pleased in the speedy delivery. I will definitely use this company again.

Easy to order. Fast Shipping. Excellent packing. Overall great experience. Will do business again and recommend to others!

Great website, with definitely the lowest prices online. Their system kept me informed every step of the way on my order status. More than the average online store. Autoplicity is now my first stop for auto parts and accessories.

Best price I found on Weathertech digifit floor mats for my 2012 F150 Supercrew. Product was as described and shipping was fast too.

Great prices, helpful customer service. Ordered 2 by mistake. And they got it cleared up real fast. Saved over $80 off retail. Will be ordering from the, again!!!!! <br>

Cheapest around, excellent shipping, easy to use website! ill be back!!!

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