S&S Cycle

Type: 551G; Timing Open: Intake 17º/Exhaust 41º; Timing Closed: Intake 19º/Exhaust 17º; Duration at 0.053: Intake 216º/Exhaust 238º; Valve Lift : Intake 0.551"/Exhaust 0.551"; Lift at TDC: Intake 0...

Heavy duty bearing retention plate, as used on 1999-2006 style cam plates for 1999-2006 big twins and T-Series engines using 1999-2006 cam plates.

These camshafts are for 1954-'84 big twins with either the Hydraulic Conversion kit or the Cylinder Head Replacement kit for panhead engines. They are also replacement parts for P-Series and...

This 640 is for 1984-1999 Harley-Davidson® big twin models with large displacement motors with compression ratios of 10.5 - 11.5:1 or smaller motors with 11:1 - 12:1 compression ratio, does not...

This 4-5/8" stroke 8-1/2" diameter flywheel assembly fits 2000-'06 internally balanced HD® big twin models as part of an S&S® 124" Hot Set Up Kit®. Sprocket shaft does not have a stock style bearing...

S&S® 4-3/8" Stroke Flywheel Assembly W/O Sprocket Shaft Bearing Race For 1999-'06 Non-balanced HD® Big Twins (Except 2006 Dyna Models).