ARP Bolts



2006+ Duramax Main Stud Kit (230-5402)


  • Inventory on the way

$420.51

  • About
  • Features
  • Fits

ARP main stud kits help eliminate main cap walk/fretting and protect the threads in your engine block. They include studs made from 8740 chromoly steel and heat-treated in-house to 190,000 psi tensile-strength rating. The precision J-form threads are rolled after heat-treat for much stronger threads than the competition. Kits come complete with hardened parallel-ground washers and high-quality nuts. Add confidence in the strength of your engine build with the ARP main stud kit designed for your application.

  • Increased Strength
  • Increased Reliability
  • 200,000 PSI Tensile Strength
  • 8740 Chrome moly construction

GM Duramax

2006 - 2010 LBZ LMM

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PowerHouse Machining was founded with the vision of creating a one-stop-shop for all of your light duty engine needs. We pride ourselves on our industry-leading engine quality, dedication to customer service, and sincere passion for our trade.

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