ALUM25068AP2.08/1.601.295

The Dart LS1 style high performance cylinder head offers improved airflow, efficient combustion, and user-friendly features compared to production LS1 castings. It retains stock valve angles, valve locations, and accessory mounting holes for easy installation. It's cast from virgin 355-T61 aerospace alloy for superior strength and features extra thick walls for porting, and additional metal above ports for valvetrain upgrades. It has standard multi-angle intake, radiused exhaust seats, and CNC machined valve bowls to enhance flow. Manganese bronze valve guides and interlocking hardened valve seats ensure long-term reliability. The racing-inspired combustion chamber improves flame propagation and increases airflow.