Jims, Cylinder Torque Plates For Harley-Davidson

Used with 3.4375" to 4" bore with OEM base pattern; Plates simulate stress conditions when boring and honing, which prevents distortion of cylinders walls once cylinders are installed Note: order MCS 519231 bolt kit only separately for Sportster & Buell models Fits: 66-99(NU)B.T.; 86-19 XL; 08-12(NU)XR1200; 87-10(NU)Buell XB Units: EA