
Upgrade the valvetrain of your 2001-2016 GM 6.6L Duramax (LB7/LLY/LBZ/LMM/LML) engine with the Industrial Injection 44B801 130lb Performance Valve Spring Kit. This kit is ideal for engines running high boost pressure (over 45 psi) and exceeding 3200 RPM.
Key Features:
- Enhanced Performance:
- Helps prevent valve float, a critical issue that can occur at high RPMs and lead to engine damage.
- Enables your engine to operate safely and efficiently at higher power levels.
- Improved Durability:
- Constructed with high-quality materials for long-lasting performance:
- 32 Conical Valve Springs
- 32 Billet Steel Retainers (increased strength compared to stock)
- 32 Chromoly Spring Seats
- 64 Valve Locks
- Constructed with high-quality materials for long-lasting performance:
- Complete Kit:
- Includes all the necessary components for a complete valve spring upgrade.

Upgrade the valvetrain of your 2001-2016 GM 6.6L Duramax (LB7/LLY/LBZ/LMM/LML) engine with the Industrial Injection 44B801 130lb Performance Valve Spring Kit. This kit is ideal for engines running high boost pressure (over 45 psi) and exceeding 3200 RPM.
Key Features:
Enhanced Performance:
Helps prevent valve float, a critical issue that can occur at high RPMs and lead to engine damage.
Enables your engine to operate safely and efficiently at higher power levels.
Improved Durability:
Constructed with high-quality materials for long-lasting performance:
32 Conical Valve Springs
32 Billet Steel Retainers (increased strength compared to stock)
32 Chromoly Spring Seats
64 Valve Locks
Complete Kit:
Includes all the necessary components for a complete valve spring upgrade.[...]
Upgrade the valvetrain of your 2001-2016 GM 6.6L Duramax (LB7/LLY/LBZ/LMM/LML) engine with the Industrial Injection 44B801 130lb Performance Valve Spring Kit. This kit is ideal for engines running high boost pressure (over 45 psi) and exceeding 3200 RPM.
Key Features:
- Enhanced Performance:
- Helps prevent valve float, a critical issue that can occur at high RPMs and lead to engine damage.
- Enables your engine to operate safely and efficiently at higher power levels.
- Improved Durability:
- Constructed with high-quality materials for long-lasting performance:
- 32 Conical Valve Springs
- 32 Billet Steel Retainers (increased strength compared to stock)
- 32 Chromoly Spring Seats
- 64 Valve Locks
- Constructed with high-quality materials for long-lasting performance:
- Complete Kit:
- Includes all the necessary components for a complete valve spring upgrade.