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Cometic Chevrolet Gen-1 Small Block V8 4.200in Bore .040in MLS Cylinder Head Gasket w/ Steam Holes

Marsoni M251S
Sale price$97.60
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Cometic Chevrolet Gen-1 Small Block V8 4.200in Bore .040in MLS Cylinder Head Gasket w/ 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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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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Chad Welch
New York, US
★★★★★ 5
Good fit
Good quality and fits perfectly
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Reviewed in the United States on May 3, 2026
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Kevin Boynton
Port Orchard, US
★★★★★ 5
Works
Fit my 1996 xr6 150 just fine. Engine runs at correct temperature so they are working as they should.
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Reviewed in the United States on March 13, 2026
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Verified Purchase
Champ
Lake Worth, US
★★★★★ 5
Quick delivery
Fit like they should and seems to be working great
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Reviewed in the United States on March 15, 2026
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GINGER B.
Fort Morgan, US
★★★★★ 5
Great product
Great product
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Reviewed in the United States on December 30, 2025
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chris s
Whiting, US
★★★★★ 5
Fit Mercury 150 saltwater 2 stroke great!
These fit my Mercury 150 perfect. Took it out for a test run and engine ran great with no overheating issues.
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Reviewed in the United States on August 26, 2025

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