Speedmaster PCE100.1002 SBC MLS Head Gasket Stud Kit Bore - 350 12-Point 4.165

The Speedmaster PCE100.1002 is a complete cylinder head sealing solution for Small Block Chevy 350 engines, combining a multi-layer steel (MLS) head gasket with a full 12-point chromoly stud kit in a single set. Designed for high-performance and forced-induction applications, this kit delivers the clamping force and sealing integrity needed to handle serious power.

MLS Head Gaskets:

• 4.165 in. bore diameter with a 0.040 in. compressed thickness
• High-pressure multi-layer steel laminate construction engineered to withstand the extreme shearing forces generated between aluminum cylinder heads and cast-iron engine blocks
• Internal embossments expand under heat and combustion pressure to maintain a positive seal — ideal for nitrous, turbocharged, and supercharged applications
• Maintains consistent contact pressure between head and block throughout the full range of engine operating conditions
• Compatible with aluminum cylinder heads on cast-iron or aluminum engine blocks
• Not cut-to-fit — precision manufactured to spec

12-Point Head Stud Kit:

• Manufactured from aircraft-grade 8740 high-tensile chromoly steel
• Cold-forged for molecular integrity, then heat-treated prior to thread rolling and machining
• Rated at 190,000 psi tensile strength
• Black oxide finish for corrosion resistance
• Includes 12-point nuts and hardened parallel washers for even load distribution and accurate torque readings

Kit Includes:

• 2x MLS cylinder head gaskets
• Complete head stud set with 12-point nuts and hardened parallel washers

Sold as a complete set. Intended for racing and high-performance applications.