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Cometic C5666-086 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

C5666-086
11 reviews
Sale Price

$155.47

Estimated ship date Saturday, November 21

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Product Details

The Cometic C5666-086 is a premium Multi-Layer Steel (MLS) cylinder head gasket engineered specifically for Ford 385 Series big block engines. This high-performance gasket features a 4.400-inch bore diameter and a compressed thickness of .086 inches, providing an excellent balance between sealing performance and compression ratio tuning.

Key Features:

  • Multi-Layer Steel (MLS) construction for superior sealing and durability
  • 4.400-inch bore diameter accommodates stock and mildly overbored cylinders
  • .086-inch compressed thickness for precise compression ratio control
  • Designed specifically for Ford 385 Series engines (429, 460)
  • Exceptional resistance to blow-out and combustion pressure
  • Reusable design with proper installation and torque procedures

Cometic's MLS gaskets utilize multiple layers of stainless steel with proprietary coatings to create a gasket that conforms to surface irregularities while maintaining robust sealing under extreme cylinder pressures. This gasket is ideal for street performance, racing applications, and high-boost forced induction builds where reliable head sealing is critical.

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

fine so far

Did not mention anything about mounting hardware, will cancel sale if no mounting kit, thank you

Simply awesome. The customer service was actually enjoyable to deal with and their prices are unbeatable (just ask Jegs). I will most definitely be doing business with Autoplicity again.

Decent shipping and definetly the lowest prices. Found a new grille for my truck 50 dollars lower than any other website.

called to ask about fitment. first operator hung up on me after waiting 10 min on hold. called back and hector was able to help me with my order.

Thanks

I wish there something that told me an estimate of when the item leaves the warehouse

I was told about Autoplicity from a friend on a car forum site that I wouldn't be disappointed with the price, quality and shipping. <br><br>I ordered my part on 7-18-12 and received my item the very next day. That's about as fast as getting some parts from the local auto parts store when they have the parts stocked in an outlying warehouse.<br><br>I will certainly look to Autoplicity first when I need to order engine and other car parts for my 87' Monte Carlo SS<br><br><br><br>

These guys have the best prices I could find by far, for the parts I needed. I have made two purchases from them so far and am sure there will be more. They ship fast and provide tracking information.<br>

The sales/service team were very helpful and they had the cheapest price for an air filter that I could find. I will definitely shop here again!

A+ part as advertised, quick shipping.

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