Description

Industrial Injection LB7 Duramax race cylinder heads for 2001-2004 Chevrolet Silverado 2500HD/3500 and GMC Sierra 2500HD/3500 6.6L LB7 Duramax. Sold as a complete pair, fully ported and assembled, ready to bolt on.

Heads are 5-axis CNC ported using CAD/CAM software developed specifically for cylinder head porting, then fitted with screw-in torque-lock injector cups, new diamond-honed valve guides, premium nickel-based non-magnetic valve seat inserts, new unshrouded valves with a multi-angle valve job, and 130lb performance valve springs.

Features

• 5-Axis CNC Race-Ported LB7 Cylinder Heads
• Screw-In Torque Lock Injector Cups
• Diamond-Honed Valve Guides
• Unshrouded Valves w/ Multi-Angle Valve Job
• High-Strength Heat-Treated Iron Valve Guides
• Premium Nickel-Based Non-Magnetic Valve Seat Inserts
• 130lb Performance Valve Springs
• Sold as a Pair
• Part Number: PDM-LB7RH

Notes

• To receive full core credit, cores must be a re-usable pair of cylinder heads with no cracks, warping, or excessive wear.
• For the standard reman head with stock-style cups, see the PDM-LB7SH Stock Reman Head. For a reman head with torque-lock cups (without the race porting), see the PDM-LB7SH-TL.
• Core deposit applies — keep your old cylinder heads and return them to recover the deposit.