Speedmaster PCE348.1037 Multi-Layer Steel Head Gasket Mopar 318 360 4.080" Bore

The Speedmaster PCE348.1037 is a high-performance multi-layer steel (MLS) head gasket engineered specifically for Mopar Chrysler small block 318 and 360 cubic inch engines. Featuring a 4.080-inch bore diameter and 0.040-inch compressed thickness, this gasket is designed to handle extreme cylinder pressures in high-horsepower applications.

Key Features:

• Multi-layer steel construction for superior strength and durability
• 4.080-inch bore diameter accommodates standard and slightly overbored applications
• 0.040-inch compressed thickness for precise compression ratio tuning
• Internal embossments distribute heat and maintain seal integrity under extreme temperatures
• Ideal for aluminum head to iron block or aluminum head to aluminum block combinations
• Maintains constant contact pressure during thermal expansion and contraction cycles
• Proven performance in turbocharged, supercharged, and nitrous oxide applications

MLS head gaskets excel where traditional composite gaskets fail. The high-pressure steel laminate design resists the severe shearing forces that occur between dissimilar metals during combustion. This gasket offers superior torque retention, minimal distortion, and exceptional sealing characteristics in demanding performance environments where cylinder pressures and temperatures exceed stock specifications.