312 V-TWIN TOOLS LOWER END 978485 JIMS, EVO B.T. CASE BORING TOOL Used to bore stock or aftermarket 3.5" cylinder bore Evolution Big Twin cases with stock cylinder stud pattern up to a 3.8125" diameter spigot hole. Can be used with Heavy Duty 15" drill press. 978481 84-99 style Evo B.T. cases Replacement parts 978640 3/8" cemented carbide tool bit 978481 JIMS, TWIN CAM CRANKCASE BORING TOOL Lets you bore out crankcases to accept 4" big bore cylinders with stock bolt pattern. This tool is designed to be used in a heavy-duty 15" drill press. Simply bolt the cases into the angle swivel base that is mounted to your drill press, then install the case boring fixture (utilizing cylinder stud holes), set the RPM and depth of bore and start boring. 978485 99-17 Twin Cam GEORGE'S GARAGE, TWIN CAM CYLINDER TORQUE PLATES Fits 99-17 Twin Cam style cylinders. Used for cylinders with a standard bolt pattern. 979468 3.750" - 3.938" bore 979469 4.000" - 4.060" bore 979468 JIMS, BALANCER BEARING TOOL Used to pull the engine balancer bearings from the case in one easy smooth motion, thus preventing any damage to the bearing bores. Installation is done with the install portion of this tool by pushing on the outer diameter of the bearing, preventing any damage to bearings or bore. Note: 920542 JIMS driver handle is required for use with the install portion of this tool. Driver handle must be ordered separately when required. 978417 00-06 Softail 920542 Race & bearing driver handle 978417 S&S, TWIN CAM CRANKCASE BORING PLATE Boring fixture kit, designed to bore stock 88" or 96" Twin Cam cases to accept 4" and 4-1/8" big bore S&S cylinders. The included spacer allows to bore the crankcases without removing the cylinder studs. 512715 99-17 Twin Cam 512715 S&S, CRANKCASE BORING PLATE Boring fixture kit. Used to bore cases, with stock cylinder base pattern, to big bore sizes. Compatible with all 36-99 Big Twin models and 86-03 XL Sportsters with stock cylinder base pattern. The included spacer allows to bore the cases without removing the cylinder studs. Note: Required spacers must be ordered separately. 512838 36-99 B.T.; 86-03 XL Spacers 512839 spacer is required for 86-03 XL Sportster. Both 512839 and 512841 spacers are required for 84-99 Big Twin models. 512839 3-11/16" tall 512841 7/8" tall 512838 512839 512841
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