APPLICABILITY:For GM Chevy LS1 LS6 LQ4 LQ9 4.8L 5.3L 5.7L 6.0L.These gaskets can also be used with LS3, LS2, and 6.0L iron blocks, as well as 4.8L/5.3L and LS1/LS6 applications,the default bore is 4.09. Replace Part Number: 12558178, BTR73450, 12617944, 12612350, 12630223, 12633904, 12637683, 12585673, 12639249, 89060436, 12551933, 12611384, 12558177, 12622033. Premium Quality: The head gaskets are made of multi-layer stainless steel material, ensuring that it can withstand the high pressure, high temperature, and corrosion of the car, ensuring long service life and high-performance.. Features: The cylinder gasket help to ensure sealing and no gas and liquid leakage. It can seal the cylinder to ensure maximum compression and prevent coolant or engine oil leakage into the cylinder.. Easy Installation: No modification Requires. Produced under strict quality control standards, easy product installation..
