Small Bore 7‑Layer MLS Head Gasket Pair

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Michigan Motorsports Small-Bore 7-Layer MLS Head Gaskets

Fits 1999-2013 4.8L and 5.3L Engines

Sold in Pairs

These small bore, seven layer MLS head gaskets utilize the same sealing technology found in the well-proven, robust LS9 gaskets. These gaskets are the ideal choice for boosted or nitrous 4.8-5.3L based engines, especially on aluminum block versions where the LS9 gasket fire ring sits close to the edge of the sleeve. Will easily hold 1000+hp when combined with ARP head studs and a proper tune-up.

3.940" Bore Diameter
.055" Compressed Thickness
Will not work on 1999-2001 heads that have "notched" decks.
*Will not work with Trick Flow heads*

Fits: LM7 L59 LC9 LMG LR4 LM4 L33 LS4 LY2 L20 LY5 LMF LH6 LH8 LH9

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5
7 layer head gasket

Posted by Brad Silvers on Oct 2nd 2025

Very high quality head gasket
5
Excellent Service!

Posted by Travis Nishimoto on Dec 30th 2024

Much better dealing with Michigan MS then Summitt or jegs!!!! Trust me , helping me make my NBS Silverado build a breeze!!
5
LS

Posted by Keegan Schuster on May 5th 2024

Perfect Install And Great Quality
5
Not leaks

Posted by Richard Baughman on Nov 10th 2022

Can't wait to stick 15 lbs of boost down its throat

7-Layer 5.3L 4.8L Small Bore MLS Head Gasket Pair for Boosted Nitrous Turbo Supercharged 4.8 5.3 LS