ARP - Chevy Duramax Diesel '01-'04 (Lb-7), '04-Pres (Lly) Head Stud Kit - 230-4201

The ARP 230-4201 head stud kit is designed for GM Duramax 6.6L diesel engines, providing superior head gasket retention for both stock and performance builds.

Key Features

• Head stud kit for GM Duramax 6.6L diesel engines


• Fits LB7, LLY, LBZ, and LMM engine codes


• High-strength ARP alloy materials


• Improves sealing under high cylinder pressure


• Ideal for towing and performance applications

Compatibility & Installation Notes

• Fits GM Duramax 6.6L LB7–LMM engines


• Follow ARP torque sequence and specifications


• Recommended during head gasket replacement

Prop 65 Warning

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.