Cometic GM Gen II / Mark IV Big Block (396 / 402 / 427) 4.630in Bore .070in MLS-5 Head Gasket

Cometic GM Gen II / Mark IV Big Block (396 / 402 / 427) 4.630in Bore .070in MLS-5 Head Gasket

Marsoni

M251S

$147.94

Get it in 3 business days with 1 day shipping. Friday, May 29

Cometic GM Gen II / Mark IV Big Block (396 / 402 / 427) 4.630in Bore .070in MLS-5 Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 070". 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

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I have had these for about a week and so far i am not happy with them. They look good up but they are made only of thin particle board, the brackets do not not hold tight, i used the included Sheetrock holders and screws and i think the screws are to big for the holders and just dont hold well. Currently my shelves are empty because when i put something on them the shelves tilts forward. I am trying to decide if i can fix somehow or if I should just return them.

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Reviewed in the United States on April 13, 2026

Verified Purchase

Nikkita

Boise, US

★★★★★ 5

Worth Getting 👍🏼

Color: Black, Size: 36"W x 12"D, 2Packs

Love these. Looks great on our kitchen wall. Sturdy. Holds quite a bit of dishes.

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Reviewed in the United States on March 17, 2026

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Dawn Dski

Belleville, US

★★★★★ 5

Great product

We have ordered this item many times. Easy to install and looks great. My son uses them to store/display his car model collections. We also used one to hold a sound bar in the living room.

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Reviewed in the United States on April 1, 2025

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vincent r syracuse jr.

Lexington, US

★★★★★ 1

There junk.

Color: Walnut, Size: 55"W x 12"D, 2Packs

These shelves are junk ! I had to wait 3 months to get them because they shipped by mule train which is ridiculous. The metal brackets that attach to the wall are weak. The shelves sag. They are not level front to back. Do not waist your money on these.

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Reviewed in the United States on April 12, 2026

Verified Purchase

Mathias farnsworth

Alexandria, US

★★★★★ 5

No issues with item

Color: Black, Size: 30"W x 12"D, 2Packs

No issues or problems with item

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Reviewed in the United States on February 28, 2026