Andrews 55N Conversion Chain Drive Cam for Harley Twin Cam 99-06 .550" Lift | 216855

Allow you to upgrade your 99-06 Twin Cam (except 06 Dyna Glide) to the newer roller-style cam chains and replaces the spring tension cam chain adjusters with the later-style hydraulic adjusters for longer life
Cam grinds listed are designed to be used with stock lifters; they require the installation of a 07-15 cam plate, oil pump, cam sprockets and chains, and both hydraulic chain adjusters (these parts are not included and must be purchased separately)
A list of required components is supplied with each set of cams
Performance should be similar to earlier bikes with the same cam grinds
Made in the U.S.A.

"55N" GRIND CAMS

• Coil bind should be checked; can be used with stock tappets (minimum valve travel of .620")
• Maximum torque and horsepower at higher rpm ranges (2600-6200+ rpm)
• Piston-to-valve and valve-to-valve clearance must be checked
• Designed for engines with 9.8:1 to 10.2:1 compression ratio
• Fits: Harley Twin Cam 1999-2006 (Excluding 2006 Dyna)

NOTE: 99-06 Twin Cam motors (except 06 Dyna Glide) cannot use the 07-15 cams, as the bearing journal on the earlier motors is .875" in diameter and the 07-15 cams are 1.000" in diameter. The "N" series of cams feature the .875" bearing journal, yet still accept the new style cam support plate.

NOTE: 99-01 model motors must use the Andrews Rear cam sprocket  $69.95. 2002-2006 models must use the stock Rear cam sprocket, OEM #25728-06.

NOTE: Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.