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www.zodiac.nl 07-065 25 CROSS REF ZPN > PAGE 24 TECHTIPS & CROSS REF > ZPN 26 ALPHABETICAL INDEX 01 HELMETS, LUGGAGE, AUDIO & MORE 05 ENGINE ELECTRICS 09 TRANSMISSION 13 FOOT CONTROL 17 FENDER & STRUTS 21 MIRROR 03 EXHAUST 07 ENGINE 11 WHEELS & TIRE 15 FRONT SUSPENSION 19 OIL TANK, FILTER & LINE 23 OIL, CHEMICALS & TOOLS 02 SEAT 06 INTAKE 10 FINAL DRIVE 14 HANDLEBAR 18 GAS TANK & INSTRUMENT 22 WINDSHIELD 04 ELECTRIC & LIGHT 08 PRIMARY 12 BRAKE 16 CHASSIS/ FRAME & SHOCKS 20 FASTENERS TW55 GRIND 233001 Roller chain conversion cams for maximum torque and Horsepower at higher RPM range. For engines with 9.5 to 1 or higher compression ratio and 88 to 95 CI (2600 to 6000 or higher RPM). TW50 GRIND 233000 Roller chain conversion cams for maximum torque and Horsepower at higher RPM range. For lighter bikes and engines with 9.5: 1 compression ratio and 88 to 95 cubic inch (2600 to 6000+ RPM). TW37 GRIND 232981 Bolt-in roller chain conversion cams Andrews claims that Twin Cam models with this bolt-in cam grind have shown 80+ rear wheel Horsepower. Smooth idle, broad torque band. Runs best with low restriction exhausts (2200 to 5800 RPM). TW31 GRIND 232980 Bolt-in roller chain conversion cams. Great for 96 CI motors with a compression ratio between 9.8 and 10.2. Similar to the TW37 but with a lower TDC lift for ease of installation (2000-5600 RPM). TW26 GRIND 232979 Bolt-in roller chain conversion cams for lower RPM torque in both carburetor and injection models (FLT etc.) For two up touring, this cam will add more torque and HP at lower and middle RPM range (1800 to 5500 RPM). TW21 GRIND 232704 Bolt-in roller chain conversion cams with more torque for all around riding with stock compression ratio, works great on heavy weight bikes (1700 to 5200 RPM). TW12 GRIND 232694 Bolt-in roller chain conversion cams with the same output as the stock cam. Slight power increase but no re-tuning necessary! Roller Chain conversion kits Kit includes oil pump assembly, cam support plate, screws, roller chains, tensioners, sprockets, and installation instructions. Matching conversion cams are not included but must be ordered separately. 750689 Fits 1999 thru 2001 FXD, FLH and FLT series models and 2000 thru 2002 Softail models 750690 Fits 2002 thru 2005 FXD models and 2002 thru 2006 FLH/FLT series models and 2002 thru 2006 Softail models CAMS FOR TWIN CAM E�G�N� Grind Open Close Duration @ .053" Lift Valve Lift Lift @ TDC Springs Stock timing for models with carburetor Intake -02° 38° 216° .473" .072" Stock Exhaust 36° 04° 220° .473" .110" Stock timing for injected models Intake 02° 34° 216° .473" .087" Stock Exhaust 36° 04° 220° .473" .110" TW12 Intake 02° 34° 216° .489" .091" Stock Exhaust 37° 05° 220° .489" .106" TW21 Intake 10° 30° 220° .498" .134" Stock Exhaust 40° 08° 228° .498" .121" TW26 Intake 09° 37° 226° .490" .129" Stock Exhaust 43° 07° 230° .490" .129" TW31 Intake 10° 46° 236° .510" .131" Stock Exhaust 52° 08° 240° .510" .148" TW37 Intake 14° 42° 236° .510" .151" Stock Exhaust 48° 12° 240° .510" .140" TW50 Intake 20° 48° 248° .510" .184" Stock Exhaust 54° 18° 252° .510" .168" TW55 Intake 22° 46° 283° .550" .197" Hi-Lift Exhaust 52° 20° 292° .550" .181" ZPN Description OEM In kit 750689 In kit 750690 730069 Rear cam sprocket with ignition trigger ring - 1 - 732951 Oil Pump, high volume, high pressure 26037-06 1 1 749288 Primary cam chain, roller type 25675-06 1 1 749289 Secundary cam chain, roller type 25683-06 1 1 750673 Retaining ring 11461 1 1 750674 Cam support plate 25355-06A 1 1 750675 Cam drive sprocket, 17 teeth 25673-06 1 1 750678 Rear cam sprocket, 34 teeth 25728-06 - 1 750679 Spacer, .100" 25729-06 1 1 750680 Spacer, .110" 25731-06 1 1 750681 Spacer, .120" 25734-06 1 1 750682 Spacer, .130" 25736-06 1 1 750684 Spacer, .150" 25738-06 1 1 750686 Chain tensioner, primary 39968-06 1 1 750687 Chain tensioner, secundary 39969-06 1 1 Roller Chain conversion kit for 1999 thru 2001 Twin Cam or 2002 thru 2006 Twin Cam. These kits include the late style oil pump that is required to let the oil pressure operated cam chain tensioners work properly, as well as all other parts required to install your Andrews Roller Chain Conversion cams. Please note that these conversion cams do not fit 2006 thru 2017 Dyna models, nor any other 2007 thru 2017 Twin Cam model. These cams are designed for use with stock hydraulic lifters. Matching EZ-install pushrod kits are also available, they are listed elsewhere in this chapter.