Banshee 17cc Cool Head Domes Race Gas Alcohol Chariot Pro Design Dome Set Orings

FITS ALL YAMAHA BANSHEE 421cc TOP END ALL MODELS ALL YEARS

66mm 17cc 12deg billet cool head domes

Cool head O-Ring kit 

For use with race gas or alcohol only

For use with stock 64mm to 66mm cylinders and stock crankshaft

Works on Pro Design, Noss, ADA, Chariot, Vito's, Mod Quad, and CPI heads