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Cometic C5846-084 MLS Cylinder Head Gasket for Pontiac - 400/428/455 V8

(Pontiac GTO 1968-73, Firebird 1968-79, Grand Prix 1968-77, Grand Am 1973-75, Bonneville 1968-78, LeMans 1968-77, Catalina 1968-78 + 12 more models)

Part of: Cometic MLS Cylinder Head Gasket Bore Honda

Other options in this family: Cometic C4311-040 Cometic C4251-030 Cometic C4232-030 Cometic C4962-028 Cometic C5434-051

Manufacturer

Picture for manufacturer Cometic

Part Number

C5846-084
8 reviews
Sale Price

$157.91

Estimated ship date Tuesday, November 24

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Product Details

The Cometic C5846-084 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Pontiac 400, 428, and 455 cubic inch V8 engines. This precision-manufactured gasket features a 4.380-inch bore diameter and a compressed thickness of .084 inches, providing excellent sealing capability for both stock and modified applications.

Key Features:

  • Multi-Layer Steel (MLS) construction for superior strength and durability
  • 4.380-inch bore diameter optimized for Pontiac big-block V8 engines
  • .084-inch compressed gasket thickness
  • Engineered to withstand high cylinder pressures and extreme temperatures
  • Provides exceptional sealing with minimal torque requirements
  • Accommodates minor surface imperfections for reliable sealing

Cometic MLS head gaskets are constructed with multiple layers of stainless steel, featuring a proprietary coating that ensures optimal sealing under demanding conditions. The flexible design allows the gasket to conform to cylinder head and block surfaces while maintaining consistent clamping pressure across the entire sealing surface. Ideal for performance rebuilds, forced induction applications, and high-compression naturally aspirated engines.

Products specifications

Fits

Pontiac GTO 1968-73, Firebird 1968-79, Grand Prix 1968-77, Grand Am 1973-75, Bonneville 1968-78, LeMans 1968-77, Catalina 1968-78, Tempest 1968-70, Parisienne 1968-74, 1976, Grandville 1971-75, Executive 1968-70, Grand LeMans 1975-77 + 7 more models

Prop 65

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

Material

Multi-layer Steel

We bought this for our refrigerator in our toy hauler. My husband just installed it.... it seems to be keeping things cold. It was an easy fix.

Website is not the easiest to use.

Excellent

easy and fast

best price around

Was easy so far hope it comes soon thanks

Great

Quick, informative

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