BRAND NEW
PART # 288121
Andrews TW21 21 Series Chain Drive Grind Cams Kit
Fits Harley 1999-2006 Twin Cam Models (EXCEPT 2006 DYNA GLIDE)
Andrews Products grinds its cams with the help of a computer with cam design capabilities.
This superior technology gives the utmost in both performance and reliability.
Only the best alloy steel billets and heat-treating processes are utilized.
Furthermore, the power in Harley’s Twin Cam engine can be made even more convincing when superior Andrews computer-designed high-performance cams are installed.
Cams work well with fuel injection or carburetor models
Run best with low restriction exhausts (1700-5200 rpm)
Bolt-in cam for more torque with stock compression
Can be used with stock valve springs and tappets
Similar to the EV-23 cam
Chain Driven Cams: 00-06 model cams use a splined cam drive sprocket. These cams will fit in the 1999 Twin Cam motor, but the splined cam drive sprocket OEM #25716-99 or DS-199175 must be used.
Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.
59G, 60G and 64G cams are for highly tuned engines and require the knowledge of an expert engine builder for proper setup and installation.
Notes:
Runs best with low restriction exhausts (1700-5200 RPM)
Can be used with stock valve springs and tappets
Grind: 21 Series
Intake Lift at TDC: 0,134″
Intake Open: 10??
Intake Lobe Centerline: 100??
Intake Close: 30??
Intake Lift: 0,498″
Intake Duration: 255??
Exhaust Lift: 0,498″
Exhaust Duration: 264??
Exhaust Lift at TDC: 0,121″
Exhaust Open: 41??
Exhaust Lobe Centerline: 106??
Exhaust Close: 8??