SKU: 60845490570

Cometic GM/Mercury Marine 1050 Gen-IV Big Block V8 .066in MLS Cylinder Head Gasket-4.580in Bore

Sale price$137.51 Regular price$152.79
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

Cometic GM/Mercury Marine 1050 Gen-IV Big Block V8 .066in MLS Cylinder Head Gasket-4.580in BoreComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed thickness is 0. 066". 2 Slotted Valley Bolts. 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

Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed thickness is 0.066". 2 Slotted Valley Bolts. 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 materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 60845490570

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4.4 ★★★★★
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GAU
Phoenix, US
★★★★★ 5
Great choice for your older Vehicle.
Style: High Mileage 150K, Size: 5 qt (Pack of 1), Configuration: 5W-30
Trusted and put to use many times with my 2006 Pontiac G6. I have over 140,000 miles on her and she is still reliable and running great. I love the fact that it also helps clean away the built up grime etc. in the Engine
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
R
Verified Purchase
Richard J Enright Jr
Fort Morgan, US
★★★★★ 5
Works
Style: High Mileage 150K, Size: 5 qt (Pack of 1), Configuration: 10W-30
The seal conditioners seem to be working as I’m seeing less oil dripping onto the ground now under my jeep
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
G
Verified Purchase
Goober
Pawtucket, US
★★★★★ 5
Good
Style: High Mileage 150K, Size: 5 qt (Pack of 1), Configuration: 5W-30
Good oil. Stopped leak
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Reviewed in the United States on April 1, 2026
B
Verified Purchase
Brady legree
Waukegan, US
★★★★★ 5
a great new high mileage oil
Style: High Mileage 150K, Size: 5 qt (Pack of 1), Configuration: 5W-30
this oil actually made my high mileage (230k) car run better .
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Reviewed in the United States on April 13, 2026
S
Verified Purchase
Sergii Bondar
Grantham, US
★★★★★ 5
Good motor oil
Style: High Mileage 150K, Size: 5 qt (Pack of 1), Configuration: 5W-20
The engine oil meets the stated requirements.
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Reviewed in the United States on March 24, 2026

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