POWERSTORM 2.3L FORD ECOBOOST MAIN STUD KIT

These main studs are made from 8740 chromoly steel and have a 190,000 psi tensile-strength rating. They are precision centerless-ground and thread-rolled to Mil-S-8879 specs, with a black oxide finish for corrosion resistance. The kits come complete with hardened washers and high-strength hex nuts.Provide even clamping and loading and can be retorqued over and over.

• Cold-forged to ensure molecular integrity 
• Heat-treated prior to thread rolling and machining 
• Rated at 190,000 psi 
• Complete with ARP nuts and hardened parallel washers.