Industrial Injection PDM-LB7RH LB7 Duramax Ported & Polished Race Cylinder Heads Pair

The Industrial Injection PDM-LB7RH LB7 Duramax Ported & Polished Race Cylinder Heads are engineered for the serious racer and sled puller demanding maximum airflow and top-end performance from their 6.6L LB7 Duramax diesel engine. Sold as a complete right-hand and left-hand set, these heads arrive fully CNC ported and polished, ready to bolt on.

Key Features:

• 5-Axis CNC Cylinder Head Porting using CAD/CAM software specifically designed for precision diesel cylinder head porting
• Screw-In Torque Lock Injector Cups — mechanically secured to prevent movement under extreme heat and pressure, permanently addressing a known LB7 failure point
• Diamond Honed Valve Guides for superior seal and longevity
• Unshrouded Valves for improved airflow and combustion efficiency
• High-Strength Alloy, Heat-Treated Iron-Based Valve Guides
• Premium Nickel-Based Non-Magnetic Valve Seat Inserts for superior heat resistance
• Multi-Angle Valve Job for optimized flow and seating
• Performance 130 lb Valve Springs
• Port development validated on a Superflow 600 Flow Bench with computer-recorded flow measurements
• Sold as a complete matched pair (RH & LH)

The Reconditioning Process:

Each core head is thoroughly jet-washed in a high-pressure spray cabinet to remove oil and debris, then glass-beaded to eliminate carbon buildup. Heads are then magnafluxed or pressure tested and visually inspected for cracks, warping, or defects. Valve guides and seats are removed as needed prior to CNC porting, ensuring only structurally sound castings make it to the finished product.

Core Charge Notice: A $500 core charge applies to this product. To receive full core credit, returned cylinder heads must be a good, reusable pair — free of cracks, warping, or excessive wear.