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01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 07-064 ANDREWS ROLLER CHAIN CONVERSION CAMS FOR 1999 THRU 2006 TWIN CAM The roller chain drive was introduced in 2006 on the Dyna models and commonly used from 2007 in all Twin Cam engines to replace the silent chain drive. The conversion kit exchanges the high power spring loaded chain adjuster for an oil pressure based system to maintain chain tension. Also the journal bearing on the sprocket end is replaced with a bigger and sturdier piece. Less wear and easy installation are direct results of these innovations. These conversion kits allow Twin Cam owners enhanced performance and prolonged engine life. You have to order a set cams from the list below, as well as a Grind Open Close Duration @ .053 Lift Valve "Lift Lift Springs @TDC Stock timing for carbureted models Intake -02° 38° 216° .473" .072" Exhaust 36° 04° 220° .473" .110" Stock timing for injected models Intake 02° 34° 216° .473" .087" Exhaust 36° 04° 220° .473" .110" TW21 Intake 10° 30° 220° .490" .134" Exhaust 40° 08° 228° .498" .121" TW26 Intake 09° 37° 226° .490" .129" Exhaust 43° 07° 230° .490" .129" TW31 Intake 10° 46° 236° .510" .131" Exhaust 52° 08° 240° .510" .148" TW37 Intake 14° 42° 236° .510" .151" Exhaust 48° 12° 240° .510" .140" TW50 Intake 20° 48° 248° .510" .184" Exhaust 54° 18° 252° .510" .168" TW55 Intake 22° 46° 283° .550" .197" Exhaust 52° 20° 292° .550" .181" TW60 Intake 24° 56° 260° .560" .205" Exhaust 58° 22° 260° .560" .192" TW60 GRIND For a well prepared engine with 95 inch cylinders and head work. Andrews claims that 100+ Horsepower is within reach. Tuning also includes exhaust changes (2400 to 6000+ RPM). 700834 Silent Chain version 232693 Roller Chain version TW55 GRIND Cams for maximum torque and Horsepower at higher RPM ranges. For engines with 9.5 to 1 or higher compression ratio and 88 to 95 CI. (2600 to 6000 or higher RPM). 700843 Silent Chain version 232692 Roller Chain version TW50 GRIND Cams for maximum torque and Horsepower at higher RPM ranges. For lighter bikes and engines with 9.5: 1 compressionratio and 88 to 95 cubic inch (2600 to 6000+ RPM). 700833 Silent Chain version 232599 Roller Chain version TW37 GRIND For both carburetor and injection models. 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). 700832 Silent Chain version 232597 Roller Chain version TW31 GRIND Great cam for 95 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). 232522 Silent Chain version 232596 Roller Chain version TW26 GRIND Bolt-in cams for lower RPM torque in both carburetor and injection models (FLT etc.) For two up touring, this camwill add more torque and HP at lower and middle RPM range (1800 to 5500 RPM). 700831 Silent Chain version 232595 Roller Chain version TW21 GRIND Bolt-in cams with more torque for all around riding with stock compression ratio. Works great on heavy weight bikes (1700 to 5200 RPM). 700841 Silent Chain version 232594 Roller Chain version ANDREWS CAMS FOR TWIN CAM Since the Twin Cam engines became available, their potential for more performance has already become an established fact. Andrews has designed and tested new cam grinds which show that more power is within reach. The Twin Cam with its larger bore and shorter stroke has a very broad torque curve compared to earlier engines. All of the Andrews performance cams are intended for use with the stock hydraulic lifters and Andrews matching EZ-Install push rods that come in your choice of anodized aluminum or chrome-moly steel. EZ-Install push rods do not require removal of tanks or rocker boxes for installation. Andrews also offers a heat-treated 34 teeth rear cam drive sprocket for late Twin Cam models. Early Twin Cam models have the gear fitted to the cam with a key, where later models have a splined camshaft and gear. These sprockets are made from heat-treated alloy steel with a wider than stock press fit for greater stability. Gears are highly recommended for use in your stock engine but must be used with any Andrews cams. Gears are not included with the cams, they must be ordered separately. Andrews cams are available for all Twin Cammodels. "Silent Chain" version fits FLH/FLT models 1999 thru 2006, Softail models 2000 thru 2006 and Dyna models 1999 thru 2005, "Roller Chain" version fits Dyna models 2006 to present and all other Twin-Cam models 2007 to present E�G�N� CAMS FOR TWIN CAM TW57 GRIND Bolt-in, broad tip cams for 96, 103 and 110CI engines, gives maximum torque between 2200-5600 RPM. 745342 Roller chain version