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Ships within 48 hours · Estimated delivery Oct 26 - Oct 31
Optimized for a +4mm stroker crankshaft
Engineered for the rider who demands quality and performance
and hardware needed to refresh your engine without machining
92mm head gasket for all stock bore cylinders (Fits 90mm Stock)
Replaces OEM Part # 90034-HP1-670
Pro Design Cool Head Billet 4mil 68mm Big Bore 24cc Domes Kit Yamaha Banshee 350 400EX Optimized for a +4mm strokerThe ORIGINAL Made in USA Pro Design Racing Cool Head for Yamaha Banshees! FITS ALL YAMAHA BANSHEE MODELS & YEARS! Features: CNC Billet machined design offers noticeable bolt on performance gains and increases in cooling efficiency 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 Interchangeable O Ringed domes allow you to