Cometic Chevy Small Block 4.200 inch Bore .060 inch MLS-5 Head Gasket (w/All Steam Holes)

Cometic Chevy Small Block 4.200 inch Bore .060 inch MLS-5 Head Gasket (w/All Steam Holes)

Marsoni

M251S

$128.84

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

Cometic Chevy Small Block 4.200 inch Bore .060 inch MLS-5 Head Gasket (w/All Steam Holes)Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 060". With Steam Holes. 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

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The looks are very nice, functional if left alone once assembled. After that I would leave them alone otherwise you risk the main male portion just coming loose of the housing, sound quality is decent, nothing to write home about, but again, not very durable. If they could fix that 1 thing, these would be very good buy and value, the rest of each plug is hefty and well made.

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Reviewed in the United States on January 12, 2026

Verified Purchase

Amazon Customer

Waukegan, US

★★★★★ 5

Fixed my over temp warning issue.

Easy to change and work like new. No more over temp warning at idle.

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Reviewed in the United States on June 9, 2025

Verified Purchase

Michael Rhodes