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Part number: C5746-040
Product Details
Cometic C5746-040 Gaskets & Seals
Products specifications
Bore 4.250in
Material MLS
Thickness .040in
Bore Diameter 4.250"
Engine GM Gen II/ Mark IV ZL1 Big Block V8
Bore Configuration Round Bore
Head Gasket
w/ Round Bores

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

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Fast shipping, great product.  Nothing more needs to be said.
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Autoplicity was quick and easy. Painless web format. Shiped right away. And reasonably priced too.
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Great communication, Great prices! They beat all the competitors hands down on price for my cold air intake order #18986.  Quick shipping and they are now in my favorites for places to look for automobile needs.  The only thing I would like to see them change is the speed of their website.
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Fitment
Chevrolet Camaro
1969 Chevrolet Camaro Base
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