Pro Design PD307 Cool Head Dome - Standard Bore (21cc) control-throttle-tubes 1993-1997 Polaris Lite GT

1993-1997 Polaris Lite GT

2002 KTM 520 SX

1996-1997 Harley Davidson FLSTF Fat Boy

Post Position: + Right

Pro Design PD307 Cool Head Dome - Standard Bore (21cc) control-throttle-tubes 1993-1997 Polaris Lite GTBillet 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.