PRO1 ALUMINUM SMALL BLOCK

Dart Pro 1 Cylinder Heads feature advanced Wet Flow Technology for optimized fuel atomization and airflow. Designed for direct bolt-on compatibility with stock accessories, they maintain standard valve angles and spacing. Exhaust runners are raised 0.135" for enhanced flow. Key features include durable manganese bronze valve guides and hardened valve seats for unleaded fuel compatibility. Constructed from premium 355-T61 aerospace aluminum alloy for superior strength. Available with 170cc and 195cc intake port sizes. Heart-shaped 58cc combustion chambers improve efficiency, with multi-angle intake seats and radiused exhaust seats boosting airflow. The exhaust flange uses a standard bolt pattern.