Michigan Motorsports LS9 MLS Head Gaskets w/Head Bolt Kit | Fits 1997-2003 GM LS Engines | 4.8L 5.3L 5.7L 6.0L 6.2L LS1 LS6 LQ4 LQ9 LR4 LM7 | Top-End Solution

The Michigan Motorsports LS9 Head Gasket and Head Bolt Kit is the ultimate top-end solution for 1997–2003 GM LS engines. Featuring the proven LS9 multi-layer steel (MLS) gasket design (GM 12622033 style), this kit delivers maximum sealing strength for naturally aspirated, boosted, or high-compression applications. Paired with a complete head bolt set, it provides everything you need to secure your cylinder heads with confidence. Perfect for stock rebuilds or high-performance LS projects, this kit eliminates the guesswork by combining premium MLS head gaskets with the proper torque-to-yield bolts. Whether you’re refreshing an LS1 daily driver or assembling a boosted LQ9, Michigan Motorsports has you covered with OEM-quality parts you can trust.

• Complete LS9 Gasket & Bolt Kit – Includes LS9-style multi-layer steel (MLS) head gaskets and a full head bolt set, providing all necessary components for a secure top-end rebuild or gasket replacement.
• MLS 12622033 Proven Design – Manufactured to the same high standards as the GM LS9 MLS gaskets, ensuring superior sealing performance under high cylinder pressures.
• Perfect for Stock or Boosted Applications – Handles the extreme demands of turbocharged, supercharged, or high-compression LS engines while maintaining OEM-level reliability.
• OEM-Quality Head Bolts – Includes all required torque-to-yield head bolts for both cylinder heads, delivering consistent clamping force and long-term durability.
• Designed for 1997–2003 LS Engines – Direct fit for 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L applications including LS1, LS6, LQ4, LQ9, LR4, LM7, and L59.