S&S Easy Start Cam Kit 557 Series Gear Drive High RPM Harley Big Twin Cam 06-17
Designer: S&S Cycle
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- $944.95
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- $944.95
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SKU
330-0057
Free delivery to the Lower 48 States
30 Day Returns and Exchanges
Fitmet Questions? Call us at 610-754-8500
BRAND NEW
PART# 330-0057
Fits 06-17 Big Twin models
Gear drive
Designed for Tri-Glides and other heavy bikes needing good bottom and mid-range performance. Bolt-in design.
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 chain-drive cams include installation kit
All gear-drive cams include 4-gear set and installation kit
For 88/95/96/103 cubic-inch engines
Compression ratios below 10:1
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.
Not for models with OEM compression releases.
Made in the U.S.A.
GRIND - 557 SERIES
INTAKE LIFT AT TDC - 0.113"
INTAKE OPEN - 6°
INTAKE LOBE CENTERLINE - 100°
INTAKE CLOSE - 26.5°
INTAKE LIFT - 0.557"
INTAKE DURATION - 212°
EXHAUST LIFT - 0.557"
EXHAUST DURATION - 231°
EXHAUST LIFT AT TDC - 0.146"
EXHAUST OPEN - 38.8°
EXHAUST LOBE CENTERLINE - 103°
EXHAUST CLOSE - 12.4°