2003 Polaris 3 PRO X Factory Service Manual, Page 31Get this manual
ENGINE Improvements for 2003 440 Pro X
1VForcet Reeds 2Revised carburetion calibration 3"Dragon" ignition system
V FORCEt REEDS
Pro Model Specifications
Machine Model Engine Model CylDispCC's
438 438 593 701 794
65.5 66 77.25 81 85
Bore Inches
2.579 2.598 3.041 3.189 3.346
Stroke MM
65 64 64 68 70
Stroke Inches
2.559 2.520 2.520 2.677 2.756