4402940/4402940
S&S Cycle 640 EZ Easy Start Gear Drive Cams .640 Lift Harley Twin Cam 99-06 | 106-4840
- Brand S&S Cycle
- Model 4402940
- Availability In Stock
IN BRAND NEW CONDITION
PART # 106-4840
DRAG PART # 0925-0747
TUCKER PART # 498468
Fits: 1999-2006 Harley-Davidson Twin Cam Models (Excluding 06 Dyna) with Chain Drive
- Start any engine regardless of displacement or compression ratio with a stock starter
- Save your starter and battery; tested for 10,000 starts without running battery down
- Allow for easy start by initially reducing crank compression, but once the engine starts and rpm increases, the compression release lobe is centrifugally retracted and the engine runs normally, with full compression, and without any loss in performance
- All gear-drive cams include 4-gear set and installation kit
- Gear-drive cams also available with inner gears only; intended for cam replacement for motors that have already been converted to an S&S gear-drive system
- Made in the U.S.A.
640 EZ CAMS
- Strongest from 3,000-6,000 rpm
- Compression ratios from 10.5:1 to 11.5:1
- For 95/96/103/110 cubic-inch engines
- High-lift springs required
Note: Installation kit required for proper installation - sold separately. 1999 Twin Cam will need to use the splined cam drive OEM 25716-99
| Grind | Open | Close | @ .053 | Valve Lift |
640 EZ Start |
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| Intake | 20° | 60° | 265° | .640 |
| Exhaust | 60° | 25° | 270° | .640 |
| Grind | Open | Close | @ .053 | Valve Lift |
Stock Carburetors/Injected Cams |
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| Intake | -02° / 02° | 38°/34° | 216°/216° | .473 |
| Exhaust | 36 Degree | 04/04 Degree | 220/220 Degree | .473 |