PPE CAST IRON CYLINDER HEAD 110100101 | 2001-2004 6.6L Duramax LB7

Upgrade the durability and performance of your 2001–2004 GM 6.6L Duramax LB7 with the PPE 110100101 Cast Iron Cylinder Head. Engineered as a heavy-duty replacement for cracked or damaged factory cylinder heads, this performance-oriented design utilizes specialty alloyed gray cast iron construction to provide exceptional strength and long-term reliability.

Unlike factory aluminum heads, this cast iron design helps minimize expansion-rate differences between the cylinder head and engine block, promoting more consistent clamping force and improved durability in high-performance and heavy-duty applications.

The valvetrain features premium materials throughout, including chromoly-silicone alloy intake valves, nitrided 214N alloy exhaust valves, chromoly steel retainers, spring seats, and 125 lb conical valve springs.

Key Benefits:

• Heavy-duty cast iron construction for increased durability
• Designed to withstand demanding performance applications
• Cast-in injector cups eliminate injector cup leakage concerns
• Premium valvetrain components for long service life

Features:

• Cast in the USA
• Specialty alloyed gray cast iron construction
• Chromoly-silicone alloy intake valves
• 214N alloy exhaust valves
• Nitrided intake and exhaust valves for increased durability
• 125 lb conical valve springs
• CNC-machined chromoly steel retainers and spring seats
• Cast-in injector cups
• Includes freeze plugs
• Rocker shaft and rocker box dowels preinstalled

Fitment:

• 2001–2004 GM Silverado/Sierra 2500HD & 3500HD 6.6L Duramax LB7

Notes:

• Sold individually. Two cylinder heads are required per engine.
• Upgraded pushrods are recommended for performance applications.