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Description
Cometic Chevy BB 4.375in Bore .080 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. 080". 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 0.080". 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 |
| 1991-1998 | 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 |
| 1996-2000 | Chevrolet | Express 3500 | LS |
| 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 |
| 1991-1998 | 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 |
| 1994-2000 | 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 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Nice and sticky
Works as it should. No complaints.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Mak sure area is clean before you install
This works amazing, easy to use, great quality. Sticks down great, I will be ordering more for sure.
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Reviewed in the United States on April 29, 2026
★★★★★ 3
Looks good so far, will update once installed
Have not installed this yet, so this is only a first impression review. I bought it to use in the wheel well area on my truck, so I’ll update later once I actually get it on and see if it makes a real difference. So far it looks good out of the box and seems straightforward enough. One thing I’d recommend is making sure you have a sound deadening roller for install, because I would not try putting this on without one. Too early for me to say how well it works for road noise since it is not installed yet, but I wanted to post my initial thoughts for now and will update later.
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Reviewed in the United States on April 2, 2026
★★★★★ 5
Great product, very impressed
Looks good, adhesive grabs well, forms well to floor pans. Price is great will be ordering more again. It definitely deadened the tin can sound you can get.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Solid Product, lots of it too
Ive had the insane rattling from my subwoofer and the highway drone from my aftermarket exhaust, and this 80mil sound deadening mat was the exact fix I needed. The 36 sqft kit (which comes as 33 pieces) was plenty to fully cover my trunk, rear deck, and floorboards. Since it's a butyl-based material, there’s no awful asphalt smell, and it adhered incredibly well with just a simple roller.
The difference is honestly night and day. My bass hits so much tighter and cleaner now without the whole back end vibrating like a tin can. Even better, the cabin is significantly quieter at high speeds; that aggressive exhaust drone is finally muffled to a deep, tolerable purr. If you want an affordable way to upgrade your audio quality and actually hear your music on long drives, I highly recommend this! It took some weekend elbow grease, but the payoff is incredible.
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Reviewed in the United States on March 24, 2026