Pro Design PD308 Cool Head Dome - Standard Bore (22cc) body-bolt-kits Fits bars up to 28

Fits bars up to 28 inches wide

Color matched

precise closure

Raised yellow lettering on the sidewall

Pro Design PD308 Cool Head Dome - Standard Bore (22cc) body-bolt-kits Fits bars up to 28Billet 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.