Pay in 4 interest-free payments of $375.00 Learn more
Ships within 48 hours · Estimated delivery Oct 13 - Oct 18
The 100mm cylinder increases displacement and provides stronger power across the entire RPM range
and crankcases
BEARING NOTICE: In some cases
Genuine BPR aftermarket cylinder head
Stock bore for 750 / +2mm bore for 700
YFZ450R YFZ 450R Crank Cases 98mm Big Bore Stroker 520cc Rebuild Hotcams Valves All Balls Racing The 100mm cylinder increases displacementFITS ALL YAMAHA YFZ450 FI MODELS AND YEARS! 520cc OF BOLT ON POWER! 98mm NEW DESIGN big bore cylinder BRAND NEW OEM CRANKCASES Wiseco JE or CP forged piston** Hi temp piston rings Chrome wristpin Circlips +5mm Crankworks stroker crankshaft with rod assembled and welded at pin Stage 3 Hotcams Pro X valve springs OEM retainers and collars Pro X intake and exhaust valves Kibblewhite viton valve stem seals MAXLOCK head stud kit LIFETIME WARRANTY* Clutch
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