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Cometic C5711-120 MLS Cylinder Head Gasket for Pontiac 400/428/455 V8 4.160" Bore

(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)

Manufacturer

Picture for manufacturer Cometic

Part Number

C5711-120
5 reviews
Sale Price

$230.96

Estimated ship date Thursday, November 26

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Product Details

The Cometic C5711-120 is a precision-engineered Multi-Layer Steel (MLS) cylinder head gasket designed specifically for Pontiac 400, 428, and 455 cubic inch V8 engines. This gasket features a .120" (3.0mm) compressed thickness and a 4.160" bore diameter, making it ideal for performance builds and engine rebuilds requiring reliable sealing under high-pressure conditions.

Key Features:

  • Multi-Layer Steel construction provides superior sealing and durability
  • .120" compressed gasket thickness for precise compression ratio tuning
  • 4.160" bore diameter accommodates standard and performance applications
  • Engineered specifically for Pontiac 400, 428, and 455 V8 engines
  • Handles extreme cylinder pressures in performance and racing applications
  • Embossed stainless steel layers with advanced coating technology

Cometic's MLS gaskets are constructed from multiple layers of stainless steel with specialized coatings that allow the gasket to maintain contact pressure and adapt to minor surface imperfections. This design ensures excellent sealing performance in both stock and high-performance applications, making it a popular choice for engine builders and performance enthusiasts working with classic Pontiac V8 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

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Spoke to auto tech to see if sold in sets of two, he said yes. Placed order. Very easy. Thanks! After I received order, found out from the tire company, I only needed one box. Returned the other box. Now I found out, it is the wrong part for my car. I

Good site easy to search for and find parts. The lowest prices on almost every part I have been able to find for my truck.

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