Cam Specs
| 640 Series | Intake | Exhaust |
|---|---|---|
| Lift | 0.640" | 0.640" |
| Duration | 265° | 265° |
| Opens | 25° | 65° |
| Closes | 60° | 20° |
| Lobe Centerline | 107.5° | 112.5° |
| Lift at TDC | 0.222" | 0.192" |
Confirm compression, valve springs and pushrods are matched to the cam before installing.
Features
The S&S Camshaft adds power and throttle response with a performance cam profile built for your engine.
This is the 640 Series grind. See the cam specs for lift, duration and valve events, and confirm your engine's compression and valvetrain are matched to the cam before installing.
Fits Harley-Davidson models from 1984-1999. Check the fitment chart below to confirm your exact year and model.
- For large displacement engines 110" and larger with 10.5:1 to 11.5:1 compression and smaller engines, 96"-107" with 11.0:1 to 12.0:1 compression
- Less overlap and fast ramps build higher cylinder pressure
- Lower TDC lift makes installation easier
- Designed for use with hydraulic tappets
- Made in the USA
- Installer must check coil bind, valve-to-valve clearance, valve-to-piston clearance and cam lobe to case clearance.
- Requires high-lift springs.
Info
Shipping Information
Due to high volume some orders can take up to 14 business days to ship.
If your order contains a part and merch, they may ship separately.
Special Instructions
EX SPECS S/B65/20/265/64025PJL
CARB Notes
49-State Legal — Not legal for sale or use in California on any pollution controlled motor vehicles.
Specs
| Product Name | S&S Camshaft - 640 Series - Evolution Big Twin '84-'99 |
|---|---|
| Type | Gear |
| Units | Each |
| Riding Style | Street |
Fitment
| Position | Notes |
|---|
No matching vehicles.
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2002 HARLEY-DAVIDSON FXDX
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