S&S Cycle 640 Cam Kit For Harley Twin Cam

Item: P373619

S&S has been in the business of making Harley-Davidson motorcycles go fast for a very long time, and their innovation in the world of bumpsticks is no… Read More

How to Measure Crankshaft Runout When Choosing a Harley Cam : Weekend Wrenching

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How to Measure Crankshaft Runout When Choosing a Harley Cam : Weekend Wrenching

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Product Description

Fitment

S&S 640 Cam Kit For Harley Twin Cam

Features:

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
Standard camshaft set in S&S T124 engines
Intended for 95″ or larger engines with compression ratios between 10.5:1 and 11.5:1
3000-6000 rpm range

This Product Fits

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Product Description

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