ALUM21558AP2.02/1.601.550

Dart’s cylinder heads for LT1 and LT4 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, 58cc combustion chamber, 1.550 double springs, 2.02/1.60 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.