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Cometic C5333-027 GM Gen-V/VI Big Block MLS Cylinder Head Gasket Bore - V8 4.540 027

(Chevrolet C1500 1991-93, K2500 1991-95, C3500 1991-97, 1999-2000, C2500 1991-95, K3500 1991-95, K2500 Suburban 1992-95, P30 1991-97 + 17 more models)

Part of: Cometic GM Gen-V/VI Big Block MLS Cylinder Head Gasket Bore

Other options in this family: Cometic C5334-060 Cometic C5333-040 Cometic C5333-066 Cometic C5334-066 Cometic C5334-080

Manufacturer

Picture for manufacturer Cometic

Part Number

C5333-027
12 reviews
Sale Price

$107.35

In Stock (7)

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Product Details

The Cometic C5333-027 is a Multi-Layer Steel (MLS) cylinder head gasket engineered for GM Gen-V and Gen-VI Big Block V8 engines. Designed for high-output applications including 396, 402, 427, 454, and 502 cubic inch Big Block Chevy Mark V and Mark VI engines, this gasket delivers maximum sealing performance with a 4.540-inch bore and a compressed thickness of .027 inches.

Key Features:

  • 3-Layer MLS Construction: Comprised of two embossed, Viton-coated stainless steel outer layers and a variable uncoated stainless steel center (shim) layer for precise thickness control
  • Viton-Coated Outer Layers: Fluoroelastomer rubber-based coating is heat resistant to 482°F (250°C) and designed to seal across a variety of harsh environments, load conditions, and surface finishes
  • No Sealants Required: MLS design provides a complete, reliable seal without the need for additional gasket sealants or adhesives
  • Valve Pocketed Bore Shape: Specifically designed bore shape accommodates the valve pocket geometry of GM Gen-V/VI Big Block heads
  • Ideal for Mixed-Material Pairings: Suited for aluminum heads to aluminum blocks as well as aluminum heads to cast iron blocks, withstanding the shearing forces between dissimilar materials
  • Reduces Bore Distortion: MLS construction minimizes bore distortion while enduring extreme cylinder pressures common in performance builds
  • Corrosion Resistant: Stainless steel construction offers superior resistance to corrosion and long-term durability
  • Made in the USA: Cometic gaskets are proudly manufactured in the United States with American-sourced materials

Part number C5333-027 is sold individually and is the thinnest option in the C5333 series, making it the preferred choice for mildly decked engine builds where minimal compressed thickness is required. Cometic is an exclusive NASCAR Performance Product, and their MLS gasket line is trusted by professional builders and performance enthusiasts alike.

Specifications:

  • Part Number: C5333-027
  • UPC: 191070049560
  • Material: Multi-Layer Steel (MLS)
  • Compressed Thickness: .027"
  • Bore Size: 4.540"
  • Bore Shape: Valve Pocketed
  • Number of Layers: 3
  • Orientation: None

Products specifications

Fits

Chevrolet C1500 1991-93, K2500 1991-95, C3500 1991-97, 1999-2000, C2500 1991-95, K3500 1991-95, K2500 Suburban 1992-95, P30 1991-97, C1500 Suburban 1992-93, G30 1991-96, C2500 Suburban 1992-95, R3500 1991, R2500 Suburban 1991 + 12 more models

Prop 65

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

Material

Multi-layer Steel

The only downside was that the part wasn't correct for the application, otherwise there's absolutely no complaint.

Getting a tracking number or getting shipping information would complete a perfect shopping experience.

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Easy to navigate site simple check out

Ordered on the 20th. Received on the 26th. Parts installed within half an hour of receiving them. No complaints and I'm very happy with the transaction. Would purchase from Autoplicity again.<br> Thanks!

Product was as described, great price and reasonable shipping cost. Shipping was also very quick.

Quick shipping on my order. Thanks

Wow. Ordered it on a Wednesday got it in 2 days....amazing....and to top it off my mandrel bent ss tubing was packaged infinitely better then I would of imagined. The price was amazing. I literally have no complaints. I will definitely order again. I will say that items on their website were not labeled well so I used vibrants website to look up part numbers so I could get the right parts. Search engine wouldn't bring up items via part number. Kinda confusing but for all I got simply awesome.

Great customer service answered my question with confidence and knowledge

Great price, much cheaper than other retailers. Also, the package got shipped within 24hrs.

Great site Fast service and low price.

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