Cometic GM SB2-2 350/400 4.125 inch Bore .040 inch MLS Head Gasket with Steam Holes

Cometic GM SB2-2 350/400 4.125 inch Bore .040 inch MLS Head Gasket with Steam Holes

Marsoni

M251S

$97.60

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

Cometic GM SB2-2 350/400 4.125 inch Bore .040 inch MLS Head Gasket with Steam HolesComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". 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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Your Cometic GM SB2-2 350/400 4.125 inch Bore .040 inch MLS Head Gasket with Steam Holes orders ship within 1-2 business days.

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Standard: 3-7 business days
Fast: 2-3 business days
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Exact fit and cheaper than a trip to a repair shop. Make sure you have the proper gasket sealer, a good scrapper that's not going to dig into the sealing surface, and tools for the job. I went on my computer and downloaded a video that walked me through the process. I'm a mechanic by trade but wanted to ensure everything was correct. I've been running the motor now for a couple of months. Peeing just as it's supposed to. No more delivering, waiting, and retrieving my boat from the shop for its routine service. Just follow your owner's manual to make sure you do all the necessary maintenance.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 8, 2025

Verified Purchase

Chelsey R

Dallas, US

★★★★★ 5

Great replacement

Size: For 5.5HP 6HP 7.5HP

Works as it should. Easy to swap out.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on August 12, 2025