Speedmaster PCE279.1029 Fits Chevy SBC 350 3/8" To 7/16" DONOVAN Aluminum Block Head Stud Kit

Speedmaster cylinder head fasteners are made from aircraft quality 8740 high tensile strength chromoly steel and cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining and are rated at a whopping 190,000 psi. All kits come complete with 12 point nuts and hardened parallel washers for an even load distribution and accurate torque readings.

• Made from aircraft quality 8740 high tensile strength chromoly steel
• Cold-forged to ensure molecular integrity