S&S CYCLE Cam with Gears - 510G - Twin Cam 33-5266

Stock timing chains stretch and accumulate lash over time, robbing your Twin Cam engine of valve timing precision and limiting cam lift potential. S&S Cycle's gear drive system eliminates this slop entirely, locking in accurate valve timing while reversing the rear cam's rotation to create additional clearance between lobes—enabling higher lift cams and more aggressive profiles. Built tough in the U.S.A., this kit delivers strongest performance in the 3000–5000 RPM band, making it the preferred choice for serious builders and racers demanding reliability.

• Eliminates timing chain lash
• Reverses rear cam rotation
• Enables higher cam lifts
• Improved valve timing accuracy
• Peak power 3000–5000 RPM
• Requires professional installation
• Hydraulic press needed
• Stock gear cover material removal required
• Includes front and rear cams
• Needle bearings included
• Cam cover gasket included
• All fasteners and hardware included
• Twin Cam engine fitment
• Made in U.S.A.