S&S CYCLE Camshaft Kit - Easy Start - 551 Gear Drive - Twin Cam '99-'06 (except '06 Dyna)

Features

• Allows for easy start by initially reducing crank compression, but once the engine starts and rpm increases, the compression release lobe is centrifugally retracted and the engine runs normally, with full compression, and without any loss in performance
• Optimized for 88"/96"/103" to 106" Touring bike with slip-on mufflers and 9.0:1 to 9.0:9 compression with stock starter
• Bolt-in for stock or mildly modified Touring models
• Greatly improves low-end and midrange torque
• Strongest from idle to 4000 rpm
• Includes camshafts, gearcover gasket, bearings, retaining ring, o-ring, threat lock and instructions
• Made in the USA

Notes

• Not recommended for compression ratios of 10.0:1 or greater.
• Some models require the use of high-lift valve springs.
• Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.
• Not for models with OEM compression releases.
• Can be used with stock pushrods, lifters, and springs (unless noted).

DISCLAIMER: Not legal for sale or use in California on any pollution controlled motor vehicles.

Specs

Product Name	Camchest Kit
Type	Chain
Application	Intake / Exhaust
Model	Easy Start
Grind	551 Series
Intake Lift	0.550"
Intake Open	17°
Intake Close	19°
Intake Duration	215°
Intake Lift at TDC	0.178"
Intake Lobe Centerline	91°
Exhaust Lift	0.550"
Exhaust Open	41°
Exhaust Close	17°
Exhaust Duration	237°
Exhaust Lift at TDC	0.170"
Exhaust Lobe Centerline	102°
Units	Kit
Riding Style	Street