The BTR LS2 head gasket is a 3-layer multi-layered steel (MLS) gasket engineered to seal the cylinder head to the block on 1999-and-up GM LS-Series 6.0L engines, including LS2, LQ4, LQ9, LY6, and L96. It can also be used on 5.3 and 4.8 blocks fitted with larger-bore cathedral-port heads. Sold as a pair, it is a direct replacement for GM part # 12589227, sourced from the same supplier as the OEM units.
- Part Number: BTR-89227-2
- Application: GM LS-Series 6.0L (LS2, LQ4, LQ9, LY6, L96); also fits 5.3/4.8 blocks with larger-bore cathedral-port heads
- Material: 3-Layer Multi-Layered Steel (MLS)
- Sold As: Pair
- Bore: 4.020 in
- Compressed Thickness: 0.051 in
- GM Cross-Reference: 12589227
FAQ
What engine platform is this head gasket for?
This gasket is designed for GM LS-Series 6.0L engines, including LS2, LQ4, LQ9, LY6, and L96, and is sold as part number BTR-89227-2.
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 4.020 in bore and a compressed thickness of 0.051 in, using 3-layer multi-layered steel (MLS) construction.
Can this gasket be used on 5.3 or 4.8 blocks?
Yes, this gasket can also be used on 5.3 and 4.8 blocks fitted with larger-bore cathedral-port cylinder heads. It is a direct replacement for GM part # 12589227.
