S&S Cycle - 106-4380

Type: 510C; Timing Open: Intake 20º/Exhaust 52º; Timing Closed: Intake 38º/Exhaust 20º; Duration at 0.053: Intake 238º/Exhaust 252º; Valve Lift : Intake 0.510"/Exhaust 0.510"; Lift at TDC: Intake 0.187"/Exhaust 0.179"

The 510 cam is designed as a bolt in cam for 88, 95, and 96 inch engines with compression ratios below 9.7:1, and is intended primarily for stock heads that have not been ported. Many riders are leery of the stock chain cam drive in late model big twins. The early version introduced in 1999 was not well suited to high performance applications, the later version introduced in the 2006 Harley-Davidson® Dyna® model, and later incorporated in all big twins in the 2007 model year, was vastly improved. The new chain drive with hydraulic chain tensioners works well for all but the most demanding high performance applications. That's why S&S now offers our most popular grinds for 2007-'16 big twins in a chain drive version. The most obvious advantage to a chain drive cam set over our popular gear drive cams is the expense. When you replace the stock cams with an S&S chain drive cam set, you re-use the stock cam drive components so you save money on parts.