Description
ARP main studs replace the factory main cap bolts to stop main cap walk and fretting, protect the block threads and keep the bottom end aligned under high cylinder pressure. Because studs don't twist into the block while torquing, clamp load is more accurate and repeatable than with bolts.
ARP part number: 230-5401
Application: Duramax 6.6L LB7/LLY 2001-2005
Material: ARP2000 alloy (approx. 220,000 psi tensile strength)
Fitment
- Duramax LB7 2001-2004
- Duramax LLY 2004.5-2005
Features
- Main studs
- Side bolts
- Arp moly lube
What's Included
- Main studs
- Nuts
- Hardened parallel-ground washers
- ARP assembly lubricant
ARP installation instructions & torque specs (PDF)
Always follow ARP's published torque values and use the supplied ARP lubricant for accurate preload.
