1991 - 1992
HARLEY-DAVIDSON DYNA STREET BOB/SPECIAL
640 camshaft
| S&S CYCLE
Fits to:
Harley Davidson FXDB 1340 Dyna Glide Sturgis [1991 - 1991]
Harley Davidson FXDB 1340 Dyna Glide Daytona [1992 - 1992]
Specifications
| Manufacturer | S&S CYCLE |
|---|---|
| Exhaust lift | 0,640" |
| Exhaust duration | 265° |
| Application | Exhaust| Intake |
| Exhaust close | 20° |
| Exhaust open | 65° |
| Intake close | 60° |
| Intake open | 25° |
| Type | Gear |
| Units | Each |
| Exhaust lift at tdc | 0,192" |
| Grind | 640 Series |
| Exhaust lobe centerline | 112,5° |
| Intake lobe centerline | 107,5° |
| Intake lift at tdc | 0,222" |
| Exhaust lift imperial | 0.640" |
| Intake lift at tdc imperial | 0.222" |
| Exhaust open imperial | 65° |
| Exhaust lift at tdc imperial | 0.192" |
| Intake duration imperial | 265° |
| Intake open imperial | 25° |
| Intake close imperial | 60° |
| Intake duration | 265° |
| Intake lift | 0,640" |
| Intake lift imperial | 0.640" |
| Exhaust duration imperial | 265° |
| Exhaust close imperial | 20° |
| Exhaust lobe centerline imperial | 112.5" |
| Intake lobe centerline imperial | 107.5° |
Product description
S&S Cams are tested on the dyno, street and track before being offered to the public With hundreds of hours of testing on each cam, you know you are getting the best cam S&S can produce For large displacement engines (110"+) with 10.5 to 11.5:1 compression and smaller engines (96-107") with 11 to 12:1 compression Requires high-lift springs Less overlap and fast ramps build higher cylinder pressure Lower TDC lift makes installation easier Designed for use with hydraulic tappets Installer must check coil bind, valve-to-valve clearance, valve-to-piston clearance and cam lobe to case clearance. Made in the U.S.A.