★★★★★ 5
OE Quality Part
Worked perfectly. Everything needed is there.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
Cometic GM LS1 SB 3.910 inch Bore .030 inch MLS Head Gasket
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Cometic GM LS1 SB 3.910 inch Bore .030 inch MLS Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 030". 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 GM LS1 SB 3.910 inch Bore .030 inch MLS 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 GM LS1 SB 3.910 inch Bore .030 inch MLS Head Gasket ships.
Need Help?
Questions about Cometic GM LS1 SB 3.910 inch Bore .030 inch MLS Head Gasket, sizing, or delivery? We're just an email away.
Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Cometic GM LS1 SB 3.910 inch Bore .030 inch MLS Head Gasket in your area.
Get Shipping Estimates
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]
- Please click here for more details>>> Return & Exchange Policy
You may also like
Cometic GM LS1 SB 3.910 inch Bore .066 inch MLS-5 Head Gasket
128.84
Cometic Chrysler B/RB 4.50 inch Bore .066 inch MLS Head Gasket
147.38
Cometic Dodge 5.7L Hemi 3.950in Bore .070in MLS RHS Head Gasket
147.38
Cometic GM LS1 SB 3.910 inch Bore .036 inch MLS Head Gasket
97.60
Cometic GM LS1 SB 3.910 inch Bore .045 inch MLS Head Gasket
97.60
Cometic GM Small Block 4.080 inch Bore .040 inch MLS Head Gasket w/ Valve Pockets
97.60
Cometic Ford 2.3L 4CYL 3.83in 97mm Bore .040 inch MLS Head Gasket
86.30
4.1 ★★★★★
Based on 1306 reviews
Sort
Product Reviews
★★★★★ 5
10 out of 10
The must do service package. This is a "fits multiple" kit so youll have some extras. The kit also includes the lower unit gear oil seals, which is awesome. I always trust quicksilver to be durable and a great value for the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
★★★★★ 5
Recommended replacement parts
Worked as advertised, quicksilver parts for replacement on alpha drive gen 2 outdrive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
★★★★★ 5
Very complete kit
This Kit has everything you need to change your waer pump impellor. It comes with directions that are easy to follow, but there re plenty of videos available to help. The Quicksilver kit is priced well and was delivered quickly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 13, 2025
★★★★★ 5
Perfect OEM fit
Fixed my impeller on my Mercury Salt Water 115. Best done as a two man job. Lots of videos available online .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
recommand products
Custom Black Red-Kelly Green Authentic Baseball Jersey
27.99
Custom Black Red-Light Blue Authentic Baseball Jersey
27.99
Custom Crimson Cream Geometric Shapes Sublimation Soccer Uniform Jersey
16.99
Custom Black Sky Blue-Pink Authentic Baseball Jersey
27.99
Custom Ice Blue Black Geometric Shapes Sublimation Soccer Uniform Jersey
16.99