The BTR LS3 head gasket is a 5-layer multi-layered steel (MLS) gasket engineered to seal the cylinder head to the block on GM LS-Series 6.0L and 6.2L engines. Sourced from OEM Tier-1 suppliers, it delivers the same construction quality as the factory gasket while giving 3-layer LS2/LQ4/LQ9 owners a durability upgrade. Sold as a pair, built to the bore and thickness specs required for a reliable, consistent seal.
- Part Number: BTR-10046-2
- Application: 1999-2013 GM LS-Series 6.0L/6.2L engines — LS3, L99, L76, L77, L92, L96, L9H, L94
- Material: 5-Layer Multi-Layered Steel (MLS), OEM Tier-1 supplier sourced
- Sold As: Pair (2 gaskets)
- Bore: 4.100 in
- Compressed Thickness: 0.051 in
FAQ
What engine platforms is this head gasket for?
This gasket fits 1999-2013 GM LS-Series 6.0L and 6.2L engines, including LS3, L99, L76, L77, L92, L96, L9H, and L94, and is sold as part number BTR-10046-2.
How many gaskets come in this listing?
This listing includes a pair (two gaskets), enough for a complete engine's left and right cylinder heads.
What is the bore size and compressed thickness?
The gasket has a 4.100 in bore and a compressed thickness of 0.051 in, using 5-layer multi-layered steel (MLS) construction.
Is this a good upgrade for factory 3-layer gaskets?
Yes. BTR sources this gasket from the same OEM Tier-1 suppliers used for factory gaskets, and it is commonly used as an upgrade over the factory 3-layer gasket found on 6.0L LS2, LQ4, and LQ9 engines.
