S&S Cycle 510G Gear Drive Camshaft Cam Kit Harley Big Twin 1999-2006 .510

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  • Regular price $629.95

PART# 33-5177
FITS: 1999-2006 Harley-Davidson® big twin models (except 2006 Dyna®).
S&S Cycle 510G Gear Drive Camshaft Kit
The 510G is designed as a bolt in cam for 88 to 95 inch engines with compression ratios below 9.7:1. Intended primarily for stock heads that have not been ported.
Can be used with stock springs.
Includes 510G gear drive camshaft set and inner gears, outer cam drive gear kit, and camshaft installation kit for 1999-2006 Harley-Davidson® big twin models (except 2006 Dyna®).
3000-5500 rpm. Bolt-in overall.
Gear drive camshaft kits increase valve timing accuracy in Twin Cam engines 1999-2006 (except 06 Dyna models) by eliminating timing chain lash and loosely-fit stock cam gears
Kits reverse the rear cam's direction of rotation and provide additional operating clearance between cam lobes; the result is that higher cam lifts are possible with the gear drive kit
Kits include cams, inner gears, inner and outer bearings, outer drive gears, gasket and instructions
Cams without any gears are also available - 14-8888
To install S&S gear drive cams, material must be removed from the inner surface of the stock gear cover
Cam bearings and gaskets must be replaced when installing new cams
Also, a hydraulic press and other professional-level tools are required to install these kits
S&S recommends that adjustable pushrod/cover kit 14-9988 be used
Made in the U.S.A.
For Cams only order 14-8888
Stock pushrods and valve springs acceptable
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.
Open: 20 degree
Close: 38 degree
Duration @ .053": 238 degree
Valve Lift: .510
Open: 52 degree
Close: 20 deree
Duration @ .053": 252 degree
Valve Lift: .510
Included Items:
1. (2) Cam shafts
2. (1) Pinion gear
3. (1) Outer cam gear
4. (1) Bearing retainer
5. (1) Cam cover gasket
6. (2) Outer cam bearings
7. (2) Inner cam bearings
8. (1) 5/16"-18 X 3/4" flange head bolt
9. (1) Retaining ring
10. (1) Tube 243 loctite
11. (1) Tube 262 loctite
Intake Opening (degrees): 20
Intake Closing (degrees): 38
Exhaust Opening (degrees): 52
Exhaust Closing (degrees): 20
Intake Duration (degrees): 238
Exhaust Duration (degrees): 252
Valve Lift (in): .510
Intake Centerline (degrees): 99
Exhaust Centerline (degrees): 106
Intake Lift at TDC (in): .187
Exhaust Lift at TDC (in): .178
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