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Part number: C5666-040
Product Details
Cometic C5666-040 in our Head Gaskets Deptartment
Products specifications
Bore 4.400in
Bore (in) 4.400 in.
Bore (mm) 111.760mm
Calculator Compression Calculator
Compressed Thickness (in) 0.040 in.
Compressed Volume (cc) 9.967cc
Gasket Material Multi-layer steel
Lock Wire No
Material MLS
Quantity Sold individually.
Thickness .040in
Bore Diameter 4.400"
Engine Ford 429/460ci Big Block V8
Head Gasket

Cometic Head Gaskets are developed with the performance enthusiast in mind. With so many individual requirements for each motor Cometic offers a number of options to suit your specific motor and needs.

MLS
The Cometic MLS gasket is comprised of three layers of Stainless Steel. Cometic uses Stainless steel for increased strength, its ability to rebound and corrosion resistance. The outer layers of the gasket are embossed and coated on both sides with a flouroelastomer rubber based material (Viton) designed to meet the demands of a variety of harsh sealing environments, load conditions and surface finishes. The Viton coating is heat resistant to 2500C or 4820F.

The center or shim layer of the gasket is comprised of an uncoated Stainless Steel layer, which can be varied to accommodate multiple thickness requirements. The MLS gasket is ideal for both aluminum heads to cast iron blocks and aluminum heads to aluminum blocks.

The composition of MLS will also withstand the shearing forces created by aluminum heads on cast iron blocks. No re-torque is necessary. By design the MLS gasket promotes an even torque load across the sealing surface allowing for measurable reduced bore distortion.

CFM-20
A perforated steel core with an elastomer surface is ideal for head gaskets allowing heat to be drawn evenly across the gasket surface while providing maximum sealing characteristics when exposed to coolants and oils.

COPPER

Reviews
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S
They had the lowest price by far!  Quick shipment!  I am going back for more.  Thanks!

Order 6489
B
Great pricing!! cheapest products on the web!
R
Your competitive pricing won my business through the internet and I wasn't disappointed.  The price was great ( about 1/2 MSRP) and item was shipped very quickly. No backorder problems here!  I was impressed with the quality of my H pipe and with the packaging.
H
Amazing!  Product was exactly as described, price was excellent, and shipping was extremely fast.  Will buy from again!!
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Fitment
Ford Country Sedan
1974 Ford Country Sedan Base
1973 Ford Country Sedan Base
1972 Ford Country Sedan Base
1971 Ford Country Sedan Base
1970 Ford Country Sedan Base
1969 Ford Country Sedan Base
Ford Country Squire
1974 Ford Country Squire Base
1973 Ford Country Squire Base
1972 Ford Country Squire Base
1971 Ford Country Squire Base
1970 Ford Country Squire Base
1969 Ford Country Squire Base
Ford Custom
1972 Ford Custom Base
Ford Custom 500
1976 Ford Custom 500 Base
1975 Ford Custom 500 Base
1974 Ford Custom 500 Base
1973 Ford Custom 500 Base
1972 Ford Custom 500 Base
1971 Ford Custom 500 Base
1970 Ford Custom 500 Base
1969 Ford Custom 500 Base
Ford E-100 Econoline
1978 Ford E-100 Econoline Base / Chateau / Custom / Northland
Ford E-150 Econoline
1980 Ford E-150 Econoline Base / Chateau / Custom
1979 Ford E-150 Econoline Base / Chateau / Custom
1978 Ford E-150 Econoline Base / Chateau / Custom / Northland
1977 Ford E-150 Econoline Base / Chateau / Custom / Northland
1976 Ford E-150 Econoline Base / Chateau / Custom / Northland
Ford E-150 Econoline Club Wagon
1979 Ford E-150 Econoline Club Wagon Base / Chateau / Custom
1978 Ford E-150 Econoline Club Wagon Base / Chateau / Custom
1977 Ford E-150 Econoline Club Wagon Base / Chateau / Custom / Northland
1976 Ford E-150 Econoline Club Wagon Base / Chateau / Custom / Northland
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Return Policy
Returns are easy at THMotorsports
Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy