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

PART# 33-5178 or 499471 or 2007-2570

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

• The S&S Camshaft Gear Drive Kit increases valve timing accuracy by eliminating timing chain lash and the loosely fit stock cam gears• This is accomplished by replacing the stock cam drive sprockets and chain with light press fit S&S gears• Because the chain, chain guides, and tensioner are eliminated, there is no longer a possibility for these parts to fail and damage other parts• The S&S Camshaft Gear Drive Kit 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

Applcation: TWIN CAM

Designed for 88in. to 96in. engines with compression ratios between 9:1 and 10:1

Strongest from 3,200-5,700 rpm

1999-2004 models require 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