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Cometic GM/Mercury Marine Big Block V8 Gen-IV/V/VI 4.5in Bore MLS Cylinder Head Gasket

Marsoni M251S
Sale price$100.04
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Get it in 3 business days with 1 day shipping. Friday, May 29
Cometic GM/Mercury Marine Big Block V8 Gen-IV/V/VI 4.5in Bore MLS Cylinder Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed thickness is 0. 040". 4 Bolts in Valley. 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
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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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4.2 ★★★★★
Based on 276 reviews
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Verified Purchase
Fazal
San Leandro, US
★★★★★ 5
Quality.
Size: 15 FT, Style: 0 (1/0) AWG RED, Size: 15 FT, Style: 0 (1/0) AWG RED
If you’re reading this stop just get it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
Z
Verified Purchase
Zack
Port Orchard, US
★★★★★ 4
slightly smaller than sky high
Size: 30 FT, Style: 0 (1/0) AWG RED
wire is okay but it is definitely on the thinner side, was slightly smaller than my sky high 1/0 wire but for the price difference this is definitely worth it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2025
C
Verified Purchase
chase guerlain
Grantham, US
★★★★★ 5
Heavy gauge battery cable
Size: 10 FT, Style: 0 (1/0) AWG RED
Heavy duty works good
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Reviewed in the United States on March 11, 2026
J
Verified Purchase
jeff
Omaha, US
★★★★★ 5
Great product
Size: 5 FT, Style: 0 (1/0) AWG RED
Good quality cable.
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Reviewed in the United States on February 1, 2026
N
Verified Purchase
N. A. Williams
Bozeman, US
★★★★★ 5
89 mercruiser works fine
The mounting bracket was a little smaller than orginal, but no big deal, just drilled new hole in mounting plate. Solved my starting problem
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2023

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