PRO1 LS 15° 205cc intake runner covers applications from street cars and trucks to racing. As cast ports flow more than many ported designs at a much more affordable price.

Dart’s 15° 205cc Aluminum cathedral port cylinder heads for GM LS series small block V8 engines offer higher performance and more versatility than factory designs.

The Dart LS cathedral port high performance cylinder has better airflow, more efficient combustion chambers, and more user friendly features than production LS castings.

The Dart LS style cylinder head retains stock valve angles, stock valve locations and stock accessory mounting holes to make installation easy. Virtually everything else has been improved.

Heads are sold individually.