5147-1055 GEAR DRIVE CAM KIT MR103 SERIES W/ INNER GEARS ONLY FOR 99‑06 TWIN CAM

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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
252°

EXHAUST LIFT
0,585″

INTAKE DURATION
226°

INTAKE LIFT
0,585″

APPLICATION
Exhaust| Intake

EXHAUST CLOSE
22°

EXHAUST OPEN
50°

INTAKE CLOSE
33°

INTAKE OPEN
13°

FEATURES
Cam Kit| With Inner Gears Only

TYPE
Gear

UNITS
Kit

PRODUCT NAME
Cam Kit

GRIND
MR103

EXHAUST LIFT IMPERIAL
0.585″

EXHAUST OPEN IMPERIAL
50°

INTAKE DURATION IMPERIAL
226°

INTAKE OPEN IMPERIAL
13°

INTAKE CLOSE IMPERIAL
33°

INTAKE LIFT IMPERIAL
0.585″

EXHAUST DURATION IMPERIAL
252°

EXHAUST CLOSE IMPERIAL
22°