SKU: 6377156328

Cometic Chevrolet Big Block 396/402/427/454 4.375in Bore .030in Thick MLS-5 Head Gasket

Sale price$103.90 Regular price$115.44
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Description

Cometic Chevrolet Big Block 396/402/427/454 4.375in Bore .030in Thick MLS-5 Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 030". 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 0.030". 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
1965-1975 Chevrolet Bel Air Base
1965-1972 Chevrolet Biscayne Base
1973-1974 Chevrolet Blazer Base
1969-1972 Chevrolet Brookwood Base
1978-1980 Chevrolet C10 Big Ten
1975-1980 Chevrolet C10 Cheyenne
1975-1980 Chevrolet C10 Custom Deluxe
1975-1980 Chevrolet C10 Scottsdale
1975-1980 Chevrolet C10 Silverado
1968-1974 Chevrolet C10 Pickup Base
1968-1974 Chevrolet C10 Suburban Base
1975-1980 Chevrolet C10 Suburban Custom Deluxe
1975-1980 Chevrolet C10 Suburban Scottsdale
1975-1980 Chevrolet C10 Suburban Silverado
1990 Chevrolet C1500 454 SS
1990 Chevrolet C1500 Cheyenne
1990 Chevrolet C1500 Scottsdale
1990 Chevrolet C1500 Silverado
1990 Chevrolet C1500 WT
1975-1981 Chevrolet C20 Cheyenne
1981-1986 Chevrolet C20 Custom
1975-1980 Chevrolet C20 Custom Deluxe
1981 Chevrolet C20 Deluxe
1975-1986 Chevrolet C20 Scottsdale
1975-1986 Chevrolet C20 Silverado
1968-1974 Chevrolet C20 Pickup Base
1968-1974 Chevrolet C20 Suburban Base
1981-1986 Chevrolet C20 Suburban Custom
1975-1980 Chevrolet C20 Suburban Custom Deluxe
1981 Chevrolet C20 Suburban Deluxe
1975-1980,1982,1984-1986 Chevrolet C20 Suburban Scottsdale
1975-1977,1979-1980,1982-1986 Chevrolet C20 Suburban Silverado
1975-1981 Chevrolet C30 Cheyenne
1981-1986 Chevrolet C30 Custom
1975-1980 Chevrolet C30 Custom Deluxe
1981 Chevrolet C30 Deluxe
1975-1986 Chevrolet C30 Scottsdale
1975-1986 Chevrolet C30 Silverado
1968-1974 Chevrolet C30 Pickup Base
1988-1990 Chevrolet C3500 Cheyenne
1988-1990 Chevrolet C3500 Scottsdale
1988-1990 Chevrolet C3500 Silverado
1967-1972 Chevrolet Camaro Base
1967-1972 Chevrolet Camaro RS
1967-1972 Chevrolet Camaro SS
1967-1972 Chevrolet Camaro Z28
1966-1972 Chevrolet Caprice Base
1973-1976 Chevrolet Caprice Classic
1976 Chevrolet Caprice Classic Estate
1976 Chevrolet Caprice Classic Landau
1975-1976 Chevrolet Caprice Classic Sport
1973-1974 Chevrolet Caprice Estate
1975 Chevrolet Caprice Estate Wagon
1965-1966,1968 Chevrolet Chevelle 300
1967-1969 Chevrolet Chevelle 300 Deluxe
1970-1972 Chevrolet Chevelle Base
1967-1972 Chevrolet Chevelle Concours
1969-1972 Chevrolet Chevelle Concours Estate
1973 Chevrolet Chevelle Deluxe
1969-1972 Chevrolet Chevelle Greenbrier
1973 Chevrolet Chevelle Laguna
1973 Chevrolet Chevelle Laguna Estate
1974-1975 Chevrolet Chevelle Laguna Type S-3
1965-1974 Chevrolet Chevelle Malibu
1974-1975 Chevrolet Chevelle Malibu Classic
1974 Chevrolet Chevelle Malibu Classic Estate
1973 Chevrolet Chevelle Malibu Estate
1965 Chevrolet Chevelle Malibu Super Sport
1968-1972 Chevrolet Chevelle Nomad
1971-1972 Chevrolet Chevelle SS
1967-1970 Chevrolet Chevelle SS 396
1966 Chevrolet Chevelle Super Sport 396
1968 Chevrolet Chevy II Nova
1965-1974 Chevrolet Corvette Base
1966-1975 Chevrolet El Camino Base
1975 Chevrolet El Camino Classic
1968-1974 Chevrolet El Camino Custom
1968-1975 Chevrolet El Camino SS
1969-1970 Chevrolet Estate Base
1973-1974 Chevrolet G10 Van Base
1976 Chevrolet G20 Beauville
1976 Chevrolet G20 Chevy Van
1976 Chevrolet G20 Sportvan
1973-1974 Chevrolet G20 Van Base
1973-1974 Chevrolet G20 Van Sportvan
1975-1976,1988-1990 Chevrolet G30 Beauville
1975-1976,1988-1990 Chevrolet G30 Chevy Van
1975-1976,1988-1990 Chevrolet G30 Hi-Cube
1975-1976,1988-1990 Chevrolet G30 Sportvan
1973-1974 Chevrolet G30 Van Base
1965-1976 Chevrolet Impala Base
1975-1976 Chevrolet Impala Custom
1976 Chevrolet Impala Custom Landau
1976 Chevrolet Impala S
1975-1976 Chevrolet Impala Sport
1965-1967 Chevrolet Impala SS
1976,1979-1980 Chevrolet K10 Cheyenne
1976,1979-1980 Chevrolet K10 Custom Deluxe
1976,1979-1980 Chevrolet K10 Scottsdale
1976,1979-1980 Chevrolet K10 Silverado
1968-1974 Chevrolet K10 Pickup Base
1968-1974 Chevrolet K10 Suburban Base
1976-1978,1980 Chevrolet K20 Cheyenne
1976-1978,1980 Chevrolet K20 Custom Deluxe
1976-1978,1980 Chevrolet K20 Scottsdale
1976-1978,1980 Chevrolet K20 Silverado
1968-1974 Chevrolet K20 Pickup Base
1968-1974 Chevrolet K20 Suburban Base
1985 Chevrolet K20 Suburban Custom
1985 Chevrolet K20 Suburban Scottsdale
1985 Chevrolet K20 Suburban Silverado
1977,1980-1981 Chevrolet K30 Cheyenne
1981-1986 Chevrolet K30 Custom
1977,1980 Chevrolet K30 Custom Deluxe
1981 Chevrolet K30 Deluxe
1977,1980-1986 Chevrolet K30 Scottsdale
1977,1980-1986 Chevrolet K30 Silverado
1968-1974 Chevrolet K30 Pickup Base
1988-1990 Chevrolet K3500 Cheyenne
1988-1990 Chevrolet K3500 Scottsdale
1988-1990 Chevrolet K3500 Silverado
1976 Chevrolet K5 Blazer Base
1976-1978 Chevrolet K5 Blazer Cheyenne
1977-1978 Chevrolet K5 Blazer Custom Deluxe
1978 Chevrolet K5 Blazer Silverado
1969-1972 Chevrolet Kingswood Base
1969-1972 Chevrolet Kingswood Estate
1970-1974 Chevrolet Monte Carlo Base
1973-1974 Chevrolet Monte Carlo Landau
1973,1975 Chevrolet Monte Carlo S
1969-1972 Chevrolet Nova Base
1973 Chevrolet P10 Van Base
1976,1979 Chevrolet P20 Base
1976,1979 Chevrolet P20 Step-Van
1970-1971,1973 Chevrolet P20 Van Base
1975-1989 Chevrolet P30 Base
1975-1985,1987-1989 Chevrolet P30 Step-Van
1970-1974 Chevrolet P30 Van Base
1988 Chevrolet R20 Cheyenne
1987-1988 Chevrolet R20 Custom Deluxe
1987-1988 Chevrolet R20 Scottsdale
1987-1988 Chevrolet R20 Silverado
1987 Chevrolet R20 Suburban Custom Deluxe
1987-1988 Chevrolet R20 Suburban Scottsdale
1987-1988 Chevrolet R20 Suburban Silverado
1989 Chevrolet R2500 Cheyenne
1989 Chevrolet R2500 Scottsdale
1989 Chevrolet R2500 Silverado
1989-1990 Chevrolet R2500 Suburban Scottsdale
1989-1990 Chevrolet R2500 Suburban Silverado
1988 Chevrolet R30 Cheyenne
1987-1988 Chevrolet R30 Custom Deluxe
1987-1988 Chevrolet R30 Scottsdale
1987-1988 Chevrolet R30 Silverado
1989-1990 Chevrolet R3500 Cheyenne
1989-1990 Chevrolet R3500 Scottsdale
1989-1990 Chevrolet R3500 Silverado
1969-1972 Chevrolet Townsman Base
1987 Chevrolet V20 Suburban Custom Deluxe
1987-1988 Chevrolet V20 Suburban Scottsdale
1987-1988 Chevrolet V20 Suburban Silverado
1990 Chevrolet V2500 Suburban Scottsdale
1990 Chevrolet V2500 Suburban Silverado
1988 Chevrolet V30 Cheyenne
1987-1988 Chevrolet V30 Custom Deluxe
1987-1988 Chevrolet V30 Scottsdale
1987-1988 Chevrolet V30 Silverado
1989-1990 Chevrolet V3500 Cheyenne
1989-1990 Chevrolet V3500 Scottsdale
1989-1990 Chevrolet V3500 Silverado
1975-1978 GMC C15 Base
1977-1978 GMC C15 Heavy Half
1975-1978 GMC C15 High Sierra
1977 GMC C15 Indy Hauler
1975-1978 GMC C15 Sierra Classic
1975-1978 GMC C15 Sierra Grande
1978 GMC C15 Street Coupe
1975-1978 GMC C15 Suburban Base
1975-1978 GMC C15 Suburban High Sierra
1975-1978 GMC C15 Suburban Sierra Classic
1975-1978 GMC C15 Suburban Sierra Grande
1968-1974 GMC C15/C1500 Pickup Base
1968-1974 GMC C15/C1500 Suburban Base
1979-1980 GMC C1500 Base
1979-1980 GMC C1500 Heavy Half
1979-1980 GMC C1500 High Sierra
1979-1980 GMC C1500 Sierra Classic
1979-1980 GMC C1500 Sierra Grande
1979-1980 GMC C1500 Street Coupe
1979-1980 GMC C1500 Suburban Base
1979-1980 GMC C1500 Suburban High Sierra
1979-1980 GMC C1500 Suburban Sierra Classic
1979-1980 GMC C1500 Suburban Sierra Grande
1975-1978 GMC C25 Base
1975-1978 GMC C25 High Sierra
1975-1978 GMC C25 Sierra Classic
1975-1978 GMC C25 Sierra Grande
1975-1978 GMC C25 Suburban Base
1975-1978 GMC C25 Suburban High Sierra
1975-1978 GMC C25 Suburban Sierra Classic
Shipping Notes
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Exchange/Return Notes
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SKU: 6377156328

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4.7 ★★★★★
Based on 20 reviews
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Product Reviews
A
Verified Purchase
Angel
San Leandro, US
★★★★★ 5
Ignore the bad reviews, read mine!
Pictures don’t make you think much, but in-person these are beautiful and well made. I’ve been trying to replace everything with cleaner safer alternatives. Honestly I love everything this brand offers and stands for! Some things to think about when you see other peoples negative reviews. Since these cutting boards are all around safe and clean with no toxic coating’s that most have to make them last longer, they do require more maintenance, when people don’t follow that maintenance you get a warped or cracked board. Also they are not meant to last as long as your plastic one from Walmart, they should be replaced more often. Luckily for a pack of 3, and I’ll say again that are TRULY non toxic, they are super reasonably priced! For what they offer I would even pay more for these. They do also come with instructions on how to care for them! So if you are the type of person to leave things dirty, or wet in the sink, these are probably not for you. For anyone who doesn’t mind taking the extra minute these are a must (literally a quick wipe, rinse and hand dry, it’s nothing). Gives me a breathe of fresh air to know I’m using safe, and clean products.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
L
Verified Purchase
Lacey Killion
Dallas, US
★★★★★ 1
Cutting boards will splinter
A lot of the reviews that are saying these wooden boards splinter are true. I was excited to find some nontoxic wooden cutting boards for such a great price. Upon arrival, they seemed pretty decent quality when I pulled them out of the package. I proceeded to use the large one so I gave it a quick rinse with warm water and was taken back by fumes coming off the cutting board and then wiped it down with a white paper towel and my paper towel was brown. I was a little discouraged, but decided to give it a better rinse with a soap, free brush. At that point once I dried it off whatever coding was on it came off and it was rough and splinters everywhere. Definitely a little upset that the splinters could’ve ended up in our food. These are not good quality non-toxic cutting boards I would rather spend a little extra money on a quality board that is not going to sprinter Wood shavings into my food.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
L
Verified Purchase
Lorenzo Vhee
Lexington, US
★★★★★ 5
Very good, just be sure not to leave in water
Overall, this is a very good product as my wife and I are moving towards non-toxic kitchen materials. My only advice is to make sure to not leave this submerged in water otherwise mold will easily form.
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Reviewed in the United States on December 27, 2025
A
Verified Purchase
Anonymous123
Pawtucket, US
★★★★★ 4
Truly non-toxic but a little rough and uneven
I’m very impressed with the packaging of this. When I first opened the box I was shocked that there was a plastic wrapping around the boards when they promised to be non toxic but then I saw the sticker that the wrapping was not plastic and I was very happy. The boards themselves are pretty nice and a good thickness but the only thing is I feel like the board is a little rough and parts of the board come up and are not smooth.
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Reviewed in the United States on April 7, 2026
T
Verified Purchase
TracyAZ
Natrona Heights, US
★★★★★ 3
Not Durable…Splintered….
Had to chuck these. I loved them at first but they are not durable. Scratched themselves up right away and then the mid sized one started to splinter. I didn’t even have it for very long before I had to get rid of them. Long enough to not be able to return. I prefer the bamboo as far as wood goes, but switched to an antibacterial. It’s crazy because I had the same cutting boards for years and in the past month I’ve had to replace them 3 times now. I was so disappointed because there were such amazing reviews. Sadly that was not the case for me. I give it a 3 because they are absolutely beautiful…..you get points for being beautiful I suppose in this world. But not durable. At least not for me.
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Reviewed in the United States on January 22, 2026

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