★★★★★ 5
Worked perfectly
Size: (Pack of 1)
Easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
Cometic Chevy BB Gen IV 4.320in Bore .062 inch MLS-5 396/402/427/454 Head Gasket
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Cometic Chevy BB Gen IV 4.320in Bore .062 inch MLS-5 396/402/427/454 Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 062". 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
Quick Dispatch:
Your Cometic Chevy BB Gen IV 4.320in Bore .062 inch MLS-5 396/402/427/454 Head Gasket orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Cometic Chevy BB Gen IV 4.320in Bore .062 inch MLS-5 396/402/427/454 Head Gasket ships.
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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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4.7 ★★★★★
Based on 1245 reviews
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Product Reviews
★★★★★ 5
perfect fit
Size: (Pack of 1)
Buy this. 3-minute install. Youtube it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2025
★★★★★ 4
Did its job
Size: (Pack of 1)
No complaints and did what it was intended for. Nice fit.
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Reviewed in the United States on September 16, 2024
★★★★★ 5
Excellent Quality
Size: (Pack of 1)
Nice quality.
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Reviewed in the United States on June 7, 2025
★★★★★ 5
Super easy and inexpensive
Size: (Pack of 1)
It was super easy to swap out myself! I just searched “how to change engine air filter 2017 Acura RDX” on YouTube and watched the first video that popped up. It took me longer to type this than it did to change the filter. Plus, this one cost about a third of what Valvoline was going to charge me to replace it.
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Reviewed in the United States on August 10, 2025
