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S&S Cycle

S&S Cycle 635 H.O. Cam Kit For Harley Twin Cam 2007-2017

Name: S&S Cycle 635 H.O. Cam Kit For Harley Twin Cam 2007-2017
Brand: S&S Cycle
SKU: 960736
Price: 907.95 USD
Availability: InStock

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Type:

Blemished/Refurbished

This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

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S&S Cycle 635 H.O. Cam Kit For Harley Twin Cam 2007-2017 Installation

S&S 635 H.O. Cam Kit For Harley Twin Cam

Features:

Comes with camshafts and inner and outer gears, this is a complete kit
Fuel injection tuning required
Pinion shaft run-out must be checked before installing S&S Cycle gear drive cams
A hydraulic press and other professional tools are required to install S&S Cycle gear drive cams. Additionally, material must be removed from the inner surface of the stock gear cover
The stock crankcase may require clearancing for S&S Cycle .625", .640", and .675" lift cams
S&S Cycle recommends that gear drive cams be installed by a professional mechanic
Due to the inherent characteristics of gear drives, you may experience more valve train noise with gear driven cams
Oversized and undersized gears are available to help achieve correct gear lash
S&S Cycle have found that with 160 lb. of valve seat force, the S&S Cycle gear drive cams will perform well up to 6200 rpm
If higher rpm is anticipated, valve springs that provide higher seat force should be used
Camshafts that exceed the limits of the stock valve springs require the use of special high lift springs
Most S&S cams have higher lift than stock and are designed to take advantage of the extra flow of ported stock heads or S&S Cycle Super Stock heads
Due to the high lift of these cams, S&S Cycle adjustable pushrods are recommended
To get the best performance from a performance cam installation, a high flow intake and exhaust system is also recommended
Quick installation and Easy Start Cams allow stock starter to start any engine
Kit contains cams, gear cover gasket, cam bearings, and instructions
1999-2004 stock springs will handle camshafts with lift up to 0.510". If a camshaft with higher lift is installed, high performance valve springs capable of handling a greater lift must be used
2005-up stock valve springs will handle camshafts with lift up to 0.585"
If a camshaft with higher lift is installed, high performance valve springs capable of handling a greater lift must be used. Cams with over 0.585" of lift will cause interference between the valve spring top collar and the valve seal with stock cylinder heads
Installation of S&S chain drive cams requires special tools. Attempting the cam change operation without these tools will be difficult
Damage can result which will not be covered under warranty
635 camshafts are High lift cams for modified engines with 106" or greater displacement and compression ratios between 10.0:1 and 11.0:1. Works well with stock, un-ported heads, but S&S CNC ported heads are recommended. Best power from 3000-6000 rpm
This is not a bolt-in cam set. High-lift springs and clearance checks are required