ARP 12pt Head Studs - GM Gen III/IV LS (2004+)

ARP Pro Series cylinder head studs for your GM Gen 3/4 LS engine are cold-forged to ensure molecular integrity.  They’re heat-treated prior to thread rolling and machining.  ARP Pro Series kits are also available with 12-point nuts, and all studs come complete with hardened parallel washers for an even load distribution and accurate torque readings.  

These head studs are manufactured by ARP from premium 8740 chromoly steel and heat treated to 200,000 psi.  They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment.  High-quality, parallel ground washers and 12 point nuts included.  Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly.  For all 2004 and newer LS engines, including LS1 and LS6. 

About Livernois Motorsports

Livernois Motorsports & Engineering has become best-known for revolutionary tuning and high-end performance products for late model Ford, Mopar and GM vehicles. The company is proud of its deep roots in the automotive and motorsports industry dating back to its original founding in 1949. Since then the company has expanded its product line to include tuning and performance components for desert racing, SCCA and drag racing. Livernois Motorsports is proud to engineer, test and manufacture its products in the USA.

• Fastener Style:
  • Stud
• Undercut Stud:
  • No
• Head Style:
  • 12-point
• Fastener Material:
  • 8740 chromoly
• Fastener Color:
  • Black
• Washers Included:
  • Yes
• Quantity:
  • Sold as a kit.

Note: Fits engines with all same length studs.