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J and P Cycles
J&P Cycles, Inc. was founded by John and Jill Parham in 1979. It sells motorcycle components, apparel, and gear for the American V-twin motorcycle rider.
Detail
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, bu
