Cometic GM LS1 SB 4.060 inch Bore .040 inch MLS Headgasket

Cometic GM LS1 SB 4.060 inch Bore .040 inch MLS Headgasket

Marsoni

M251S

$87.95

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

Cometic GM LS1 SB 4.060 inch Bore .040 inch MLS HeadgasketComprised 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

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As the title says the filter wasn’t green this time (purchased 3 other times). I read off the numbers to Ecogard technical support and they said it was their filter and by the date code manufactured by a different factory. This one was grey/black with blue edge and you could tell there was charcoal embedded in it. Not sure if it will perform the same and smell the same, as I preferred the scent of the green one. The listing needs to be updated with the correct picture if the green isn’t made anymore.

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Reviewed in the United States on March 11, 2026

Verified Purchase

Davian

Louisville, US

★★★★★ 5

Very clean air quality.

Size: 8" x 10" x 2"

Immaculate air quality. Easy to install.

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Reviewed in the United States on July 24, 2025

Verified Purchase

Kimmy

Boise, US

★★★★★ 5

Effective

Size: 8" x 10" x 2"

Works great

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Reviewed in the United States on September 19, 2025

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Joseph Bod

Cuba, US

★★★★★ 5

Fits 2021 Acura TLX

Size: 8" x 10" x 2"

Amazon garage and mfg website hadn't caught up, yet: this does fit the 2021 Acura TLX SH-AWD. No problems. New way of getting access -- pinch sides of glove box and drop off of hinge. Old way required removing an access panel.

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Reviewed in the United States on June 14, 2021

Verified Purchase

Port Orchard, US

★★★★★ 5

Worth it.

Size: 8" x 10" x 2"

Super easy to install. The increased airflow is definitely noticeable.

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Reviewed in the United States on August 1, 2024