SKU: 29865243454

Cometic Chevy BB 4.375in Bore .066 inch MLS 396/402/427/454 Head Gasket

Sale price$169.20 Regular price$188.00
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Description

Cometic Chevy BB 4.375in Bore .066 inch MLS 396/402/427/454 Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 066". Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.066". Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.

This Part Fits:

Year Make Model Submodel
1991-1993 Chevrolet C1500 454 SS
1991-1992 Chevrolet C1500 Cheyenne
1991-1992 Chevrolet C1500 Silverado
1991-1992 Chevrolet C1500 WT
1994-1995 Chevrolet C2500 Base
1991-1995 Chevrolet C2500 Cheyenne
1991-1992 Chevrolet C2500 Scottsdale
1991-1995 Chevrolet C2500 Silverado
1994-1995 Chevrolet C2500 WT
1992-1995 Chevrolet C2500 Suburban Base
1995 Chevrolet C2500 Suburban LS
1995 Chevrolet C2500 Suburban LT
1992-1994 Chevrolet C2500 Suburban Silverado
1994-1995 Chevrolet C3500 Base
1991-1995 Chevrolet C3500 Cheyenne
1991-1992 Chevrolet C3500 Scottsdale
1991-1995 Chevrolet C3500 Silverado
1991-1996 Chevrolet G30 Beauville
1991-1996 Chevrolet G30 Chevy Van
1991-1996 Chevrolet G30 Hi-Cube
1991-1996 Chevrolet G30 Sportvan
1994-1995 Chevrolet K2500 Base
1991-1995 Chevrolet K2500 Cheyenne
1991-1992 Chevrolet K2500 Scottsdale
1991-1995 Chevrolet K2500 Silverado
1994-1995 Chevrolet K2500 WT
1992-1995 Chevrolet K2500 Suburban Base
1995 Chevrolet K2500 Suburban LS
1995 Chevrolet K2500 Suburban LT
1992-1994 Chevrolet K2500 Suburban Silverado
1994-1995 Chevrolet K3500 Base
1991-1995 Chevrolet K3500 Cheyenne
1991-1992 Chevrolet K3500 Scottsdale
1991-1995 Chevrolet K3500 Silverado
1991-1997 Chevrolet P30 Base
1991 Chevrolet R2500 Suburban Scottsdale
1991 Chevrolet R2500 Suburban Silverado
1991 Chevrolet R3500 Cheyenne
1991 Chevrolet R3500 Silverado
1991 Chevrolet V3500 Cheyenne
1991 Chevrolet V3500 Silverado
1991-1993 GMC C2500 Sierra
1994-1995 GMC C2500 Sierra SL
1991-1995 GMC C2500 Sierra SLE
1994-1995 GMC C2500 Sierra SLT
1991-1993 GMC C2500 Sierra SLX
1992-1995 GMC C2500 Suburban Base
1992-1995 GMC C2500 Suburban SLE
1995 GMC C2500 Suburban SLT
1991-1993 GMC C3500 Sierra
1994-1995 GMC C3500 Sierra SL
1991-1995 GMC C3500 Sierra SLE
1994-1995 GMC C3500 Sierra SLT
1991-1993 GMC C3500 Sierra SLX
1991-1996 GMC G3500 Magnavan
1991-1996 GMC G3500 Rally
1991-1996 GMC G3500 Rally Camper Special
1991-1996 GMC G3500 Rally STX
1991-1996 GMC G3500 Vandura
1991-1996 GMC G3500 Vandura Special
1991-1993 GMC K2500 Sierra
1994-1995 GMC K2500 Sierra SL
1991-1995 GMC K2500 Sierra SLE
1994-1995 GMC K2500 Sierra SLT
1991-1993 GMC K2500 Sierra SLX
1992-1995 GMC K2500 Suburban Base
1992-1995 GMC K2500 Suburban SLE
1995 GMC K2500 Suburban SLT
1991-1993 GMC K3500 Sierra
1994-1995 GMC K3500 Sierra SL
1991-1995 GMC K3500 Sierra SLE
1994-1995 GMC K3500 Sierra SLT
1991-1993 GMC K3500 Sierra SLX
1991-1997 GMC P3500 Base
1991 GMC R2500 Suburban Base
1991 GMC R3500 Base
1991 GMC R3500 SLE
1991 GMC V3500 Base
1991 GMC V3500 SLE
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SKU: 29865243454

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4.4 ★★★★★
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Product Reviews
A
Amazon Reviewer 💖
Dallas, US
★★★★★ 5
Surprisingly strong cooling effect and really comfortable
Size: Queen (90" * 90"), Color: Luxury Grey, Size: Queen (90" * 90"), Color: Luxury Grey
This comforter honestly impressed me more than I expected. The cooling effect is very noticeable right away. Like actually noticeable, not just one of those things brands say. When you first touch it, it feels cool to the skin and that feeling sticks around instead of fading instantly. I’ve been using it at night and it definitely helps with overheating. I tend to get cery hot when I sleep, also I’m pregnant right now so that makes it even worse, and this has made a difference. It feels lightweight but still cozy enough that it doesn’t feel like you’re just using a thin sheet. The fabric is really soft and smooth, also it lays nicely on the bed without feeling stiff or bulky. It gives that clean, almost silky feel without being slippery. One thing to keep in mind is it’s not a super thick comforter, but i will say there is some heft to it. Like if i wrap myself around in it, it has some weight to it. Overall, I’m really happy with it. It actually does what it claims with the cooling, and it’s comfortable enough for everyday use. Great option if you’re a hot sleeper or just want something lighter and refreshing at night.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
M
mnvikings
New York, US
★★★★★ 5
I love this comforter! It is so silky soft, feels so nice to sleep under.
Size: King(103“*90”), Color: Luxury Grey, Size: King(103“*90”), Color: Luxury Grey
I absolutely love this comforter! It is super lightweight and has a very silky soft shell on both sides. It feels so good to sleep under! Ever since I have been using it, I haven't been waking up in sweat covered sheets. It constantly has a cool feel to it 24/7. It is large enough that it fits my king size bed pretty good. It doesn't hang far over the edges, but it fits. It is dual sided, so you can have a light gray look on one side and a dark gray look on the other side, depending on what fits your decor better. I definitely recommend getting if you are on the lookout for a cooling comforter, especially because of the silky soft feel.
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Reviewed in the United States on May 11, 2026
J
J
Natrona Heights, US
★★★★★ 5
It really cools - Extremely soft - Not too heavy
Size: Queen (90" * 90"), Color: Luxury Grey, Size: Queen (90" * 90"), Color: Luxury Grey
This comforter arrived packaged very well from the manufacturer. It arrived sealed in plastic inside a box. The color and appearance of the comforter received looks like what was shown in the listing. This comforter is extremely soft. It feels very cool to the touch. It has a great cooling effect. It is also not too heavy. A lot of cooling bedding products like this feel heavy. While this does have some weight it is not too much. It is easy to move around. The comforter is easy to refresh and cool off again after extended use. I just uncovered myself, lifted and moved the comforter around a little, then covered back up. This made it feel cooler again. I am very happy with this comforter so far. I like the color and design. I really like feeling cool when falling asleep. This will be great when the temperatures start going up. I will update this review later if anything changes after washing a few more times and longer use. I think this will be a good comforter for most hot sleepers who like to cover up all year.
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Reviewed in the United States on April 18, 2026
L
Lynelle
Massapequa, US
★★★★★ 5
Feels seriously amazing!
Size: Twin(90“ * 67”), Color: Luxury Grey
This is my second cooling comforter from this brand and this one is just as amazing as the first. It’s silky soft and makes a significant temperature difference. It’s like magic; you don’t need to do anything special to cool it before bed. If you do want extra coolness, you can place it in front of your AC or turn on your fan for a little bit before bed and It absorbs the extra coolness but either way it lasts all night. I use it with the cooling pillow, and the hot summer nights are no match. It’s easy to wash, really silky, smooth, and actually cool against the skin. It also somehow has a weighted blanket-like feel without being heavy. I standby this blanket so much that this is my second one, highly recommend!
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Reviewed in the United States on May 5, 2026
M
Verified Purchase
Mopardodgegirl
New York, US
★★★★★ 5
It works! Quality pillow.
Size: Standard (1 Count), Color: Original White (Cooling)
This does actually provide a cooling effect, and it's very comfortable! The accompanying literature is helpful too. I believe this to be a quality pillow for the price.
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Reviewed in the United States on June 2, 2026

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