If you're diving into the world of high-performance engines, you know how crucial a solid head gasket is. That's where the COMETIC MLS (Multi-Layer Steel) Head Gasket comes into play. These gaskets are built for serious power, designed to handle the demands of today's high-output engines without needing any sealants. Trust me, when you're pushing your ride to the limit, you want something that won't let you down.
What I love about these MLS gaskets is their versatility. They're perfect for setups with aluminum heads on aluminum blocks or even aluminum heads on cast iron blocks. The way they handle the shearing forces between different materials is impressive. Made from multiple layers of stainless steel, these gaskets pack a punch in terms of strength. Plus, they rebound nicely, which is essential for maintaining a tight seal over time.
Now, let’s talk about the materials. The outer layers are embossed and coated with Viton, a tough rubber-like material that can take the heat—up to 250°C (482°F) to be exact. This stuff is designed for harsh conditions, so you can rest easy knowing it can handle whatever your engine throws at it. The center layer, which is uncoated stainless steel, can be adjusted for various thickness needs, making it a flexible choice for different builds.
Specifically, this gasket is tailored for the AMC 390/401 V8 engines, with a gasket bore of 4.250 inches and a compressed thickness of .040 inches. It's a solid fit for a range of American Motors vehicles, including classics like the Ambassador and Javelin, as well as some Jeep models like the CJ5 and Wagoneer.
In terms of fitment, this gasket works with a variety of models, such as:
So, if you're looking to seal the deal on your engine rebuild or upgrade, the COMETIC MLS Head Gasket is a no-brainer. It’s tough, reliable, and ready to handle the heat—just like your engine.
Other Part Numbers:
Cometic Gaskets #cgsC5937-040
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Vehicle Make/Model | Year | Trims |
|---|---|---|
| American Motors AMX | 1968-1970, 1978-1979 | Base |
| American Motors Ambassador | 1958-1961 | Super |
| American Motors Ambassador | 1958-1962 | Custom |
| American Motors Ambassador | 1959-1962 | Deluxe |
| American Motors Ambassador | 1961 | Custom 400 |
| American Motors Ambassador | 1962 | 400 |
| American Motors Ambassador | 1963, 1966-1967 | 990 |
| American Motors Ambassador | 1963 | 800 |
| American Motors Ambassador | 1963, 1966-1967 | 880 |
| American Motors Ambassador | 1966-1971 | DPL |
| American Motors Ambassador | 1968-1970 | Base |
| American Motors Ambassador | 1968-1972 | SST |
| American Motors Ambassador | 1971-1974 | Brougham |
| American Motors American | 1966-1968 | 440 |
| American Motors American | 1966-1968 | 220 |
| American Motors American | 1966-1968 | Rogue |
| American Motors Classic | 1966 | 770 |
| American Motors Classic | 1966 | 550 |
| American Motors Concord | 1978-1979 | Base |
| American Motors Concord | 1979 | Limited |
| American Motors Concord | 1979 | DL |
| American Motors Gremlin | 1972-1976 | Base |
| American Motors Gremlin | 1976 | Custom |
| American Motors Hornet | 1970-1971, 1973-1977 | Base |
| American Motors Hornet | 1970-1972 | SST |
| American Motors Hornet | 1971-1977 | Sportabout |
| American Motors Hornet | 1971 | SC/360 |
| American Motors Hornet | 1977 | AMX |
| American Motors Javelin | 1968-1972 | SST |
| American Motors Javelin | 1968-1974 | Base |
| American Motors Javelin | 1970 | SST Mark Donohue |
| American Motors Javelin | 1970 | SST Trans Am |
| American Motors Javelin | 1971-1974 | AMX |
| American Motors Marlin | 1967 | Base |
| American Motors Matador | 1971-1978 | Base |
| American Motors Matador | 1974 | Brougham |
| American Motors Matador | 1974 | X |
| American Motors Pacer | 1978 | Base |
| American Motors Pacer | 1979 | Limited |
| American Motors Pacer | 1979 | DL |
| American Motors Rambler | 1969 | 440 |
| American Motors Rambler | 1969 | Rogue |
| American Motors Rambler | 1969 | Hurst SC/Rambler |
| American Motors Rambler | 1969 | Base |
| American Motors Rebel | 1967-1968 | 550 |
| American Motors Rebel | 1967-1970 | SST |
| American Motors Rebel | 1967-1968 | 770 |
| American Motors Rebel | 1969-1970 | Base |
| American Motors Rebel | 1970 | The Machine |
| American Motors Rogue | 1966 | Base |
| American Motors Spirit | 1979 | Base |
| Jeep CJ5 | 1971-1981 | Base |
| Jeep CJ5 | 1975-1981 | Renegade |
| Jeep CJ5 | 1977-1980 | Golden Eagle |
| Jeep CJ5 | 1980-1981 | Laredo |
| Jeep CJ6 | 1971-1975 | Base |
| Jeep CJ7 | 1976-1981 | Renegade |
| Jeep CJ7 | 1976-1981 | Base |
| Jeep CJ7 | 1977-1979 | Golden Eagle |
| Jeep CJ7 | 1980 | Golden Hawk |
| Jeep CJ7 | 1980-1981 | Laredo |
| Jeep Cherokee | 1974-1983 | Base |
| Jeep Cherokee | 1974-1980 | S |
| Jeep Cherokee | 1975-1983 | Wide Track Chief |
| Jeep Cherokee | 1978-1980 | Wide Track |
| Jeep Cherokee | 1979-1980 | Wide Track Golden Eagle |
| Jeep Cherokee | 1980-1983 | Wide Track Laredo |
| Jeep Cherokee | 1980 | Wide Track Limited |
| Jeep Cherokee | 1981-1982 | Chief |
| Jeep Cherokee | 1981 | Laredo |
| Jeep Cherokee | 1983 | Pioneer |
| Jeep Wagoneer | 1972-1983 | Base |
| Jeep Wagoneer | 1973-1976 | Custom |
| Jeep Wagoneer | 1979-1983 | Limited |
| Jeep Wagoneer | 1982-1983 | Brougham |
| Jeep Wagoneer | 1983 | Alpina |

Cometic is a company known for manufacturing gaskets and engine seals for different engines. They cater to various industries such as the marine, industrial, agricultural, and automotive sectors. The company was established back in 1989 and has since provided high performance sealing solutions worldwide.
Motorsport ParticipationThe company is considered as the leading supplier when it comes to gaskets and seals worldwide. They have provided high-performance gaskets in various racing events such as NASCAR, GNCC, and AMA. They helped top racing teams compete at the highest level by improving engine reliability.
Built for Extreme PerformanceWhether you are into endurance races at more than 220mph or setting the fastest drag records in 2000 hp top fuel race cars, Cometic has the right product for you. They design their products to withstand extreme temperatures and pressures. Hence, they are the brand chosen by the best in motorsports.
Best Value of ProductCometic has always been dedicated to providing high-quality products that provide customer satisfaction. They have always given their customers the best product at the most competitive price.
Quality in Every ProductThe company is housed in a 70,000 square foot facility with state-of-the-art manufacturing equipment that helps them create products that are superior compared to its competitors. Using premium materials, they are able to develop gaskets that provide proper seals every time.
Purchase Cometic Products at Vivid RacingIf you are in search of a high-quality gasket for your engine, then Cometic is the brand for you. Designed for OEM or high-performance applications, Cometic has got you covered. To know more about them, visit Vivid Racing and check out their list of products that fit your needs.