This S70 Double Sealed Cylinder Head is constructed from premium aluminum and precisely machined using CNC technology to ensure a seamless connection with the cylinder. Its advanced sealing capabilities contribute to improved air-tightness and shot accuracy. Ideal for use in power tuning, this cylinder head features a standard nozzle with an 18.8 mm length and a piston impact pad with a 70 SH hardness level. Additional information: Material - duraluminum with Teflon coating, Weight - 15g, Color - bronze, Manufacturer - EPeS.