S&S, Easy Start 583 (IOG) gear-driven camshaft kit

.583" valve lift. IOG = gear driven camshafts with inner and outer drive gears. Complete kit with installation hardware, bearings and gasket.
For 88" to 103" engines with compression ratios between 9.7:1 and 10.5:1, and 106" to 124" engines with a compression ratio of 9:1 to 10:1. Delivers great power and torque from 3000 RPM. Range of 1500-5000 RPM.
Easy Start Camshafts make starting easier by reducing the build-up of compression pressure in the cylinders during starting. This is achieved by slightly lifting the exhaust valve off its seat, by means of a spring-loaded compression release lobe within the camshaft. After starting, the compression release lobe retracts by centrifugal force. The only difference is during starting, as you will now be able to start your Big Inch engine electrically with ease, without the need for large batteries and/or starter motors. A standard starter motor and battery are sufficient. When the engine is running, the camshafts operate as normal cams, with no loss of power, torque or any other parameter.
Note: The installation kit required for the Easy Start camshafts is included in this complete (IOG) kit. It is available separately as an S&S spare part for this kit under reference 503566.
Note: Not compatible with kick-start models.
Note: Camshafts manufactured before January 2010 will require adjustable pushrods.
Note: Below 900 RPM a clicking sound may be heard. Adjust the idle speed to 1000-1100 RPM.


Specifications


Brand
S&S


Application
99-06 Twin Cam (Excl. 2006 Dyna) (NU)


Sales unit
Kit


Material
Steel


Packaging weight
2.713 kg


HS Code
84831021


Motorcycle family
DYNA, SOFTAIL, TOURING


Original name
S&S, Easy Start gear drive 583 camshaft kit (IOG)