5147-1050 GEAR DRIVE CAM KIT HP103 SERIES GRIND CAMS FOR 99‑06 TWIN CAM (EXCEPT 06 DYNA GLIDE)

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Camshaft gear drive kits increase valve timing accuracy by eliminating timing chain lash and loosely-fit stock chain drive
Reverses the rear cam’s direction of rotation, providing additional operating clearance between cam lobes; as a result, higher cam lifts are possible with the gear drive kit
Kits include cams, inner gears, outer drive gears, inner and outer bearings, gasket and instructions
Material must be removed from the inner surface of the stock gear cover to install SS gear drive cams
A hydraulic press and other professional-level tools are required to install these kits
Cam bearings and gaskets must be replaced when installing new cams
Kits require high-performance valve springs when installed in 99-04 models.
Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.
Due to the inherent characteristics of gear drives, you may experience more valve train noise.
Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.
Bolt-in cam for 103” and 106” Big Bore Twin Cam motors
Use with stock heads (up to 10.2 compression) and low restriction intake and exhaust
Great for lighter bikes with strong power from 3500-6000 rpm
Made in the U.S.A.

EXHAUST DURATION
251°

EXHAUST LIFT
0,575″

INTAKE DURATION
249°

INTAKE LIFT
0,575″

APPLICATION
Exhaust| Intake

EXHAUST CLOSE
26°

EXHAUST OPEN
45°

INTAKE CLOSE
49°

INTAKE OPEN
20°

TYPE
Gear

UNITS
Kit

PRODUCT NAME
Cam Kit

GRIND
HP103

EXHAUST LIFT IMPERIAL
0.575″

EXHAUST OPEN IMPERIAL
45°

INTAKE DURATION IMPERIAL
249°

INTAKE OPEN IMPERIAL
20°

INTAKE CLOSE IMPERIAL
49°

INTAKE LIFT IMPERIAL
0.575″

EXHAUST DURATION IMPERIAL
251°

EXHAUST CLOSE IMPERIAL
26°