Fleece FPE-61-10003-D Cylinder Head (Driver Side) | 2006-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features - New valve guides, springs, and valve seals pre-installed - Precision-ground stock valves with a 45° intake and exhaust angle - Multi-angle valve job enhances flow and sealing - Pressure and leak tested to ensure durability - Built to meet or exceed OEM specifications - Manufactured in the Freedom Racing Engine facility - No core charge required Premium Driver-Side Cylinder Head for Your 6.6L Duramax Restore the performance and reliability of your 2006–2010 GM Duramax with the Fleece Performance Freedom Series Driver-Side Cylinder Head. Designed for daily drivers, towing rigs, and workhorses, this direct-replacement cylinder head is machined and assembled with precision in Fleece's world-class Freedom Racing Engine shop. Each cylinder head undergoes comprehensive quality control—including detailed inspection and pressure/leak testing—to ensure you're getting a component that's ready to handle high heat, stress, and real-world load conditions. Whether you're replacing a failed stock head or proactively upgrading, this Freedom Series model ensures stock-like fitment and enhanced longevity. Uncompromising Craftsmanship Fleece’s commitment to quality is reflected in every cylinder head: - New guides, springs, and seals for maximum service life - Precision ground OEM-style valves deliver consistent seating and airflow - 45° valve angles replicate stock geometry for compatibility - Multi-angle valve job supports smooth airflow and improved combustion - No need to send back a core—keep your original head as a spare Fitment 2006–2010 GM Silverado 2500HD / 3500HD & Sierra 2500HD / 3500HD with 6.6L Duramax (Driver Side Cylinder Head) Warranty 1-Year Limited Parts Warranty