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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
203756326722
Big bore pistons designed for a 115mm rod stroker crank +4mm or larger
4606M08800
Yamaha WR450F 500cc Big Bore Engine Rebuild Service – Complete Motor Build by BPRATV
YZ250 Big Bore Kit Ported Cylinder Head Powervalve Complete Motor Engine Rebuild YFM350 20375632672272mm big bore cylinder Stage 3 fully ported & polished Wiseco or Wossner 72mm big bore forged performance piston Nitrite coated piston rings Chrome wristpin Circlips Big bore cylinder head Powervalve machined for 72mm bore Talon HD replacement crank with rod assembled SKF HD crank bearings Transmission bearings Shift cam bearings Water pump bearing Wristpin bearing TITANIUM cylinder stud kit with 12 point flange nuts TITANIUM cylinder head stud kit