Need a reliable seal between your cylinder heads and your headers or factory manifolds on a Gen V LT engine? Speed Engineering's MLS (multi-layer steel) exhaust manifold gaskets are engineered for extreme cylinder pressures, maintaining torque set and resisting corrosion without burning through or pushing out. No sealants required. These gaskets work across virtually any combination of cylinder head and exhaust manifold materials, making them compatible with Speed Engineering headers or factory exhaust manifolds. 8.8 metric header bolts are included. Sold in pairs — one for each bank.
Features:
- Multi-Layer Steel (MLS) Construction — Maintains torque set and resists corrosion under extreme cylinder pressures
- No Sealants Required — Direct installation without additional sealing compounds
- Compatible with Various Head and Manifold Material Combinations — Works with Speed Engineering headers or factory manifolds
- Resists Burn-Through and Push-Out — Engineered for long-term durability under heat and pressure
- 8.8 Metric Header Bolts Included
- 2 QTY per Package — One gasket per bank
Applications:
Compatible Engines:
LT1, LT2, LT4
Compatible Vehicles:
- 2016+ Chevrolet Camaro
- 2014–2019 Chevrolet Corvette (C7)
- 2020+ Chevrolet Corvette (C8)
- 2015–2020 Cadillac CTS-V
- 2014+ Chevrolet Tahoe, GMC Yukon, Cadillac Escalade (5.3L & 6.2L only)
- 2014+ Chevrolet Silverado & GMC Sierra (5.3L, 6.2L only)
FAQ
Do I need sealant with these gaskets?
No. These MLS gaskets are designed for direct installation without any additional sealants or sealing compounds.
Are bolts included with these gaskets?
Yes. 8.8 metric header bolts are included.
Will these gaskets work with my factory exhaust manifolds?
Yes. These gaskets are compatible with various combinations of cylinder head and exhaust manifold materials, working equally well with Speed Engineering headers or factory exhaust manifolds.
How many gaskets are included?
This package includes 2 gaskets — one for each bank.
What is the difference between this gasket and the LS gasket (25-1001)?
This gasket is designed for the Gen V LT engine family (LT1, LT2, LT4) found in 2014 and newer GM vehicles. The LS gasket (25-1001) is designed for the Gen 3/Gen 4 LS engine family. Make sure you select the gasket matching your engine generation.
What vehicles use this gasket?
This gasket fits a wide range of LT-powered GM vehicles including the Camaro, C7 and C8 Corvette, CTS-V, Tahoe, Yukon, Escalade, Silverado, and Sierra. See the full applications list for specific model years.
What makes MLS gaskets better than standard gaskets?
Multi-layer steel construction maintains torque set under extreme cylinder pressures and resists corrosion, without burning through or pushing out over time — common failure points for lower-quality composite gaskets.
