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Cometic C5666-140 Ford Series MLS Cylinder Head Gasket Bore - 385 4.400

(Ford F-150 1975-79, Mustang 1970-71, F-250 1973-79, 1983-96, Thunderbird 1968-76, F-350 1973-79, 1983-97, Galaxie 500 1969-74 + 32 more models)

Manufacturer

Picture for manufacturer Cometic

Part Number

C5666-140
8 reviews
Sale Price

$230.58

Estimated ship date Monday, November 23

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Product Details

The Cometic C5666-140 is a high-performance Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Ford 385 Series big block engines. This precision gasket features a 4.400-inch bore diameter and a compressed thickness of .140 inches, making it ideal for performance builds and engine rebuilds requiring reliable sealing under high combustion pressures.

Key Features:

  • Multi-Layer Steel (MLS) construction provides superior sealing and durability
  • 4.400-inch bore diameter accommodates standard and performance applications
  • .140-inch compressed thickness for proper compression ratio tuning
  • Engineered specifically for Ford 385 Series engines (429, 460)
  • Embossed stainless steel layers with Viton rubber coating ensure maximum sealing
  • Resists extreme temperatures and combustion pressures
  • Reusable design allows for disassembly without gasket replacement in most cases

Cometic MLS head gaskets are the preferred choice for engine builders and performance enthusiasts who demand race-proven reliability. The advanced multi-layer construction distributes clamping load evenly across the sealing surface while accommodating thermal expansion and minor surface imperfections. Compatible with stock and performance cylinder heads on Ford 385 Series big block engines.

Products specifications

Fits

Ford F-150 1975-79, Mustang 1970-71, F-250 1973-79, 1983-96, Thunderbird 1968-76, F-350 1973-79, 1983-97, Galaxie 500 1969-74, F-100 1973-74, 1979, Fairlane 1970, Ranchero 1970-77, Torino 1970-76, Falcon 1970, E-350 Econoline 1975-96 + 26 more models

Prop 65

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

Material

Multi-layer Steel

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GREAT PRICES AND COMMUNICATION!!!! HIGHLY RECOMMENDED STAFF AND PRODUCTS!!!!!

My Superchips Cortex arrived within a few days of order and by far was the best price arround. Product arrived in perfect condition and worked as described. Great deal. Order #10984

Thanks again! Best prices I found on the web! Fast shipping Would definitely buy from again!

Quick and easy with clear part numbers and photos.

In a rush to get my car up and running, Autoplicity had the best price on the items I needed, and in stock as well as shipped quickly. Just what I was looking for, thanks!

Great price. Minor problems with shipping because of UPS (dropped box and broke part, late delivery). Autoplicity sending me out replacement part.

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