S&S .675 inch lift cam is a high lift monster, this cam set is designed for 120 inch or larger engines with at least 11:1 compression ratio. 4500-6500 rpm. This 675GE gear drive Easy Start cam is designed to greatly improves valve timing accuracy by eliminating timing chain lash and Easy Start Cams allow stock starter to start any engine. Complete kit includes cams with inner gears and installation kit. Features and benefits include: Improves valve timing accuracy by eliminating timing chain lash Easy Start Cams allow stock starter to start any engine No tensioner shoes to wear out or fail For 1999-2006 Harley-Davidson® big twin models except 2006 HD® Dyna® Note: These cams are not bolt in and will need special valve springs.
Pinion shaft run-out must be checked before installing S&S® gear drive cams.
A hydraulic press and other professional tools are required to install S&S gear drive cams. Additionally, material must be removed from the inner surface of the stock
gearcover. The stock crankcase will require clearancing for S&S .625", .640", and .675" lift cams. S&S recommends that gear drive cams be installed by a professional
New cam bearings and a new gearcover gasket are required to complete cam installation. Gear drive cams for 1999-' 06 models require the use of ball bearing style cam
bearing rather than the stock roller bearing. Roller bearings have more internal clearance which can cause excessive gear lash and increased noise. The correct parts are
provided in S&S Camshaft Installation Kit, part #106-5896.
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. We have found that with 160 lb. of valve seat force, the S&S 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.
S&S can do a special order cam. Contact your S&S Customer Service Representative for more information.
Not legal for sale or use on CA or EPA pollution controlled motorcycles.