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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Cometic Buick 400/430/455 V8 4.385 inch Bore .027 inch MLS Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 027". 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 0.027". 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 |
|---|---|---|---|
| 1971-1973 | Buick | Centurion | Base |
| 1973-1974 | Buick | Century | Base |
| 1973-1974 | Buick | Century | Luxus |
| 1968-1974 | Buick | Electra | 225 |
| 1968-1974 | Buick | Electra | 225 Custom |
| 1974 | Buick | Electra | 225 Limited |
| 1967,1973 | Buick | Electra | Base |
| 1967 | Buick | Electra | Custom |
| 1970-1974 | Buick | Estate Wagon | Base |
| 1967 | Buick | Gran Sport | Base |
| 1968-1969 | Buick | GS 400 | Base |
| 1970-1972 | Buick | GS 455 | Base |
| 1970 | Buick | GS 455 | GSX |
| 1970-1974 | Buick | LeSabre | Base |
| 1970-1973 | Buick | LeSabre | Custom |
| 1974 | Buick | LeSabre | Luxus |
| 1973-1974 | Buick | Regal | Base |
| 1967-1974 | Buick | Riviera | Base |
| 1971 | Buick | Riviera | Gran Sport |
| 1967-1968,1970-1971 | Buick | Skylark | Base |
| 1968,1970-1971 | Buick | Skylark | Custom |
| 1968-1970 | Buick | Sportwagon | Base |
| 1968 | Buick | Sportwagon | Custom |
| 1967-1969 | Buick | Wildcat | Base |
| 1967-1970 | Buick | Wildcat | Custom |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- 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
4.8 ★★★★★
Based on 772 reviews
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Product Reviews
★★★★★ 5
Bone for destroyers
Flavor Name: Bacon, Size: Small
4 months ago I Bought this bone for my 90lb lab who destroys all his bones, but not this one! It barely has any teeth/chew marks on it and it’s one of his favorites. It was a great find and I’ll be sure to buy again. If you have a dog that destroys bones I’d give this one a try.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Immediate Doggy Happiness!
Flavor Name: Bacon, Size: Medium
Great dog bones! These are a nice size for my 55-pound Aussie, as well as our 96-pound Alaskan Shepherd. They are big enough to last for a while, and big enough to see so that I don't step on them with my bare feet; part of this is that they stick up off the floor a bit, instead of being a flat bone, all in one plane.
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Reviewed in the United States on May 17, 2026
★★★★★ 3
Nice size, the quality is changing. It is softer I believe than it used to be.
Flavor Name: Peanut Butter, Size: Large, Flavor Name: Peanut Butter, Size: Large
Not sure if something has changed in the way this product "Barkbone" is made. I bought this many times before and it lasted. Today, on my dogs first day of use, he had chipped through the material, and already destroying it. he has had it for less than 3 hours.
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Reviewed in the United States on September 29, 2025
★★★★★ 5
Very durable
Flavor Name: Steak, Size: X-Large
This is great for an aggressive chewer lady a long time very durable
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Great Product!
Size: Medium, Color: green, orange, pink, Pattern Name: clean tuff bone bacon
My dogs love their dental chews! This product is durable and the perfect size for each of my dogs. I've purchased two of them (medium and large). One of my dogs is an aggressive chewer and this product is holding up. Hartz makes great pet products. I'm very happy with the product.
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Reviewed in the United States on March 30, 2026