Dart's proprietary "Speed-Flow" Technology has now produced an affordable LS style cylinder heads with awesome flow and power.  Stock valve angles and centers, drilled and tapped accessory holes and stock port locations mean you can use stock components.  Compact, highly efficient combustion chambers improve airflow and flame propagation for increased power and torque.  Added material at the top allows flexibility for upgraded valve train components.  Two intake port sizes cover applications from street cars and trucks to racing.  Our race-proven port designs and advanced casting techniques produce the as-cast ports which flow like they've been ported, without the time and expense of CNC or hand porting.

• Multi-angle intake & radiused exhaust seats for improved airflow
• Manganese bronze valve guides and powdered metal interlocking valve seats are used for extended cylinder head life
• Virgin 355-T6 aerospace alloy
• CNC bowl-blended