Engine Kits

ARP Diesel Main Studs Chevy Duramax 6.6L (LB7/LLY) (2005 & earlier)
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ARP Bolts

ARP Diesel Main Studs Chevy Duramax 6.6L (LB7/LLY) (2005 & earlier)

Part #: 230-5401
List Price: $410.80
Our Price: $273.80
You Save: $137.00

Chevy Duramax 6.6L (LB7/LLY) (2005 & earlier), 2 bolt main, ARP Main Studs 230-5401

There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel-ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs are manufactured from 8740 chrome moly steel, heat-treated in-house to 200,000 psi tensile strength, and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others.
Brand ARP
Fastener Nut Style Standard hex
Fastener Style Stud
Fastener Yield Strength (psi) 200,000 psi
Main Bolt Style 2-bolt
Notes Fits LB7/LLY only.
Nuts Included Yes
Part Type Main Cap Fasteners
Product Line ARP Main Stud Kits
Quantity Sold as a kit.
Washers Included Yes
Works with Windage Tray No