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Description
Cometic GM Gen-V/VI Big Block V8 4.540in Bore .040in MLS Cylinder Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". 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 0.040". 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 |
| 1994-1997,1999-2000 | 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 |
| 1991-1998 | Chevrolet | K2500 | Silverado |
| 1994-1995,1998 | 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 |
| 1991-1998 | 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 |
| 1994-2000 | 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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- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.2 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 4
Its hard work
Material Type: Powder Ox, Size: 16 oz
This is hard work but it worked pretty good. Was very happy with the result.
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Reviewed in the United States on February 16, 2026
★★★★★ 5
Poli cleaners.
Material Type: Powder Ox, Size: 16 oz
Our trailer was extremely oxidized. I used the Poli wash and fiberglass cleaner, super easy. It removed the oxidation and made our trailer look new again. Next I will try the Poli sealer.
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Reviewed in the United States on May 8, 2026
★★★★★ 3
Works OK.
Material Type: Powder Ox, Size: 16 oz
With a lot of work and diligence (elbow grease), the product works at removing oxidation. I expected it to easily remove the old Poliglow as well. Still lots of work. It will NOT remove the brown water stains from the roof of my molded fiberglass camper. Product is OK, but does not work as easily as advertised.
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Reviewed in the United States on April 19, 2020
★★★★★ 5
It's extremely difficult and when it hasn't been maintained it looks like skin peeling after a sun burn
Material Type: Powder Ox, Size: 16 oz, Material Type: Powder Ox, Size: 16 oz
Poli-glow definitely works. The negative feedback is generally due to someone trying to remove poli-glow. It's extremely difficult and when it hasn't been maintained it looks like skin peeling after a sun burn. I purchased a 41' sailboat with poli-glow. The poli glow was flaking off and had to be removed. It wasn't fun.
In the end, I bought poli-strip and used an orbital sander and wet sanded thru it. Then I used poli-strip, then poli-prep and washed it down. From there I used poli-ox and poli-prep one more time...I basically used poli-prep along with lots of water to wash boat down. The poli-ox when used thick, like a paste, ate through most stains once poli-glow was removed.
It took two-three days of prep. Application took half day per side. I used two kits. Also bought the rectangular special applicator (far better than their mitt). Make sure to have lots of disposable gloves. I don't think the chemicals will harm your hands much...I didn't have gloves for much of the prep work, but gloves are a must when applying poli-glow. Othnerwise your hand get very gunked up.
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Reviewed in the United States on May 24, 2017
★★★★★ 1
Very expensive but worked no better than powdered cleansers
Material Type: Powder Ox, Size: 16 oz
My camper is a 2004 with oxidized paint and dark streaks from being out in the weather. I looked at reviews and there is a lot of hype about this product so I ordered some. I used this on an area of my camper to test it in case it didn't work and guess what...it didn't. It didn't remove the oxidation and black streaking any better than Ajax powder. In one place, when I used it as directed, it wore the paint down to the bare metal and didn't remove dark streaking in the surrounding area. The area I tested it on looked cleaner, but no better than the area I used Ajax powder on the day before. Very expensive for what it didn't do. I do not recommend this product.
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Reviewed in the United States on May 18, 2025