Speedmaster PCE348.1026 LS MLS Head Gasket Bore Thick - 4.200 0.040 Right Side

The Speedmaster PCE348.1026 is a multi-layer steel (MLS) head gasket designed specifically for Chevy GM LS engines with a 4.200" bore diameter and 0.040" compressed thickness. This is a right-side only gasket for individual cylinder head replacement or performance applications.

Advanced MLS Construction:

• High-pressure steel laminate design proven to handle extreme power levels
• Internal embossments that expand under heat to create superior sealing at high combustion pressures and temperatures
• Engineered to withstand the extreme shearing forces between aluminum heads and iron blocks
• Maintains consistent contact pressure between cylinder head and block during dynamic engine operation

Performance Benefits:

• Superior torque retention compared to conventional composite gaskets
• Reduced distortion under high cylinder pressure conditions
• Excellent sealing performance in heavy nitrous and turbocharged applications
• Ideal for aluminum-to-iron or aluminum-to-aluminum block combinations

Perfect for high-horsepower LS builds where reliable sealing and durability are critical. The MLS construction provides the strength and resilience needed for forced induction and extreme power applications.