Pro design pd305 cool head dome standard bore 1 9cc (PD305)

Description

Billet-machined design offers noticable bolt-on performance gains. Increased torque and power as a result of increasing compression. Larger water jacket area supplies more water; you get the ultimate in cooling efficiency by eliminating overheating. Cool Head shells and Cool Domes sold separately to give you a choice of compression ratios. Features include O-ring seal (no gaskets required) and adjustable and removable compression domes. Race Gas Only.This item fits the following models: 1987-2006 Yamaha YFZ350 Banshee