Heat treated S&S cam chains, 11 percent stronger than the factory chain, as a direct drop in replacement on Harley-Davidson Milwaukee-Eight and Twin Cam engines.
A stretched cam chain moves timing quietly and gradually, which is why it usually gets found during other work rather than diagnosed on its own. S&S manufactures these to reduce that stretch, with heat treated links and components that extend service life and hold timing through the kind of torque a built motor makes. They install exactly where the factory chain came out.
Features of the S&S Cam Chains
Engineered to handle high torque and high horsepower performance builds
Precision manufactured to reduce valvetrain stretch and lengthen maintenance intervals
11 percent stronger than standard factory OEM chains to minimize timing stretch
Heat treated links and components significantly extend service life
Direct OEM style drop in replacement
S&S Cam Chain Fitment
Primary outer chain, 22 links, replaces OEM 25675-06. Fits ’17-’25 Harley-Davidson Milwaukee-Eight, ’07-’17 Twin Cam and the ’06 Dyna
Secondary inner chain, 16 links, replaces OEM 25683-06. Fits ’07-’17 Twin Cam and the ’06 Dyna
The ’06 Dyna received the redesigned cam chest a year before the Softail and Touring models, so it takes the late Twin Cam chain
Works With
These are the chains used in the S&S Cam Chest Kits for M8 Motors.
