SKU: 50597204352

Cometic Chevrolet Mark-IV Big Block V8 .045in MLS Cylinder Head Gasket - 4.375in Bore

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Description

Cometic Chevrolet Mark-IV Big Block V8 .045in MLS Cylinder Head Gasket - 4.375in BoreComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 045". 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 0.045". 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
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SKU: 50597204352

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4.6 ★★★★★
Based on 13 reviews
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Product Reviews
R
Verified Purchase
Ricardo
Lowell, US
★★★★★ 5
Great product
Style: Modifier
Noticed a more smooth engine idle and less tick noise in my Tacoma. Is a win
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
B
Verified Purchase
Brian Kolley
Port Orchard, US
★★★★★ 5
My 2018 Mustang GT BBQ Tick went away but came back.
Style: Modifier
Update 1-26-2019: The BBQ/Typewriter tick came back this morning. So, I'd say that if you're trying to use the Ceratec to quiet the tick, it will work for a little while, but will eventually return. I don't think there's anything else that can be done to quiet the tick and it's a crap shoot if you get it serviced. In my case, it only ticks during warm up after the transition from high idle, and goes away completely once the entire engine is fully warmed up, so I'm just going to live with it. I'm still giving the Ceratec a 5 because it did reduce my friction enough for a small MPG improvement, so I believe it works as advertised and I'm not going to blame them for not silencing the tick. Update 1-20-2019: After a few days with only the one bottle poured in, my tick came back. Since one bottle is only 1/2 the recommended concentration for the 10 quarts in a 2018 Mustang GT, I bought another bottle and added it and the tick is now gone again. We'll see if it lasts. I can tell you that my fuel economy has improved. I have a little over 11,000 miles now and I always display my fuel economy meter and I use it. I've never reset my average fuel economy meter since the day I bought the car new. I've been pretty well stuck at 21.6 MPG for the last couple months. Since I've put in the Ceratec, my average fuel economy has increased to 21.8 MPG, so it's jumped 0.2 MPG in roughly 2 weeks. With over 11,000 miles included in the average, it takes a pretty significant improvement in friction to make that average move that much in that short a time. Even if my tick comes back again, I'm sold on Ceratec for the friction reduction alone. I'll update the review again if the tick comes back. Original Review: My 2018 Mustang GT developed the infamous BBQ/Typewriter tick immedaitely after my first oil change. I used Mobil One synthetic at 3500 miles on my first oil change. I did my 2nd oil change at 10K miles with Mobile One, but the tick was still present. After seeing people on YouTube having success eliminating their tick with Ceratec and after reading the one other review of a 2018 Mustang GT owner here on Amazon, I decided to try it. I ordered 1 bottle. It arrived on a Friday and poured it in immediately after I got home from work. It's an hour drive one way to work, so the engine was at operating temperature, where, in my case, the tick goes away. I only get it when the engine switches from high idle to normal idle after a cold start and the tick is quite loud for at least the 15 minutes it takes for me to get to the drive through where I get my morning coffee, where I can really hear the tick echoing off the wall. After pouring it in, I started the car and let it idle, but didn't really notice any change. I then took it for a drive and did some hard pulls to get the engine to rev under load to the red line. After that, I put the car in the garage until I drove to work on Monday. When I went to the drive through to get my morning coffee, there was no tick! It was gone! I listened real hard, but all I could hear was the normal direct injector pump noise. Then, after my hour long drive to work, I left car running and got out to listen. With the hood closed, it was quieter than at any time since I bought it. It was virtually silent. Even the DI pump noise was barely audible. The car also sounded and felt different during the drive to work. The engine seemed like it was smoother somehow. It might have been my imagination, but after the silence in my parking spot at work, I wouldn't be surprised if the engine did run smoother. At any rate, I only used 1 bottle to treat the 10 quarts of oil, which is half the amount the mfg says to use. So, I'll see how long it lasts, but it definitely worked even at half its normal concentration. I highly recommend it for anyone who has the 2018 Mustang GT tick.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 14, 2019
M
Verified Purchase
Mike L
Los Angeles, US
★★★★★ 5
Must have in modern high compression GDI engines!
Style: Modifier
So bought this for my new Mazda 3 Turbos' first oil change. I was originally going to use Liqui Moly MoS2, due to the OE Mazda oil using a very high Moly PPM (800ish) formula and not having easy access to a similarly formulated oil. After doing some more reading i decided to use Ceratec instead, mostly because it doesn't make the oil look super dark (for warranty purposes, If for some reason i do have a problem with the engin i don't want the dealer saying I just didn't change my oil). So initial results are awesome, the valve noise is pretty much gone. And the engin just feels smoother, and sounds like is not even trying when reving it out. With that success I bought another one for my girlfriends non turbo CX30 when i changed her oil. Her engine has always been just a little noisier than my old non turbo mazda 3, and my new Turbo model. I've used the same oil in both (Pennzoil Ultra Platinum 0w20 or 5w30 in the turbo). It had the normal lifter noise, but it always sounded raspy when accelerating hard, like it was really at the edge when floored. So as a before and after test I changed the oil fist with NO Ceratec, engin sounded happier, ran a little smoother, but basically the same as before, Normal stuff after an oil change. So I added the Ceratec, literally you could hear the lifter noise melt away as it mixed with the oil, I was in my garage so the effect was even more stark. The engine also idled smoother, to the point if you were in the car, you wouldn't know it was on without the engine RPM readout. So i took it for a test drive down the road and stepped on it after getting it up to Temp. The raspiness was completely gone, it sounded like it was happy as a clam reving right up to redline. This wasn't a "i think it might be better" differance, it was a night and day difference, a wow that impressive difference. As for fuel consumption reduction claims, i don't know yet, from what i read you need to dive it 300-400 miles to get a valid result. I only have 150ish on mine and 75 on hers. First impressions were really positive, highly recommend to anyone wanting to keep a car for a really long time. Only downside is the price, this stuff is really expensive... but i look at it like this, $600 over the life if the vehicle if you keep it to 150K miles, with 6k oil change intervals is pretty cheap insurance. compared to an engine rebuild.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 21, 2021
W
Verified Purchase
William L Rose Jr.
Alexandria, US
★★★★★ 4
Results after 1500 miles....
Style: Modifier
Seems to have made my engine a little less noisy at startup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
A
Verified Purchase
A. Mitchell
Lake Worth, US
★★★★★ 5
Been Using For a good While
Style: Modifier
Always quality product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026

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