Dart 11621123P Pro 1 High Performance Cylinder Head, 215cc

Dart's Pro 1 heads for small block Chevrolet engines are ideal for street performance enthusiasts and weekend racers alike. These heads are powerful, lightweight, affordable and come fully assembled with valves and springs. Specifications: 215cc intake ports, 72cc combustion chamber, 1.550 single springs, 2.05/1.60 valves. - 215cc cylinder heads are optimal for engines with 350 to 400 cubic in displacement reaching around 6,000 max rpm. - The 1.550 double spring is intended primarily for engine applications using a mechanical cam. - Cylinder heads sold individually, set required for engine use.

• Made start to finish in the U.S.A.
• Works with virtually all factory standard parts.
• Proven technology tested for the race track and for the street.
• Cast from premium C355-T61 aircraft aluminum.
• Developed to produce maximum horsepower and efficiency.