S&S Cycle 570G Gear Drive Camshaft Kit Cam Kit Harley Big Twin 99-06 33-5178

PART# 33-5178 or499471 or 2007-2570

S&S Cycle 33-5178Complete Gear Drive Camshaft 570G Cam Kit

• The S&SCamshaft Gear Drive Kit increases valve timing accuracy by eliminating timingchain lash and the loosely fit stock cam gears• This is accomplished byreplacing the stock cam drive sprockets and chain with light press fit S&Sgears• Because the chain, chain guides, and tensioner are eliminated, there isno longer a possibility for these parts to fail and damage other parts• TheS&S Camshaft Gear Drive Kit reverses the rear cam’s direction of rotation,providing additional operating clearance between cam lobes• As a result, highercam lifts are possible with the gear drive kit

Applcation: TWIN CAM

Designed for 88in. to96in. engines with compression ratios between 9:1 and 10:1

Strongest from3,200-5,700 rpm

1999-2004 modelsrequire high-lift springs

Intake Opening(degrees): 20

Intake Closing(degrees): 40

Exhaust Opening (degrees):55

Exhaust Closing(degrees): 20

Intake Duration(degrees): 240

Exhaust Duration(degrees): 255

Valve Lift (in): .570

Intake Centerline(degrees): 100

Exhaust Centerline(degrees): 107.5

Intake Lift at TDC(in): .187

Exhaust Lift at TDC(in): .179