Product Description
S&S CYCLE Camshaft – 640 Series – Evolution Big Twin ’84-’99
Key Features
- 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.
Technical Specifications
- Weight: 1.95 lbs
- Supplier Number: 33-5108
- Unit of Measure: Each
Current Warehouse Inventory
Stock by Location:
- ✓ Janesville, WI: 8 units
- ✗ Batavia, NY: 0 units
- ✗ Dallas, TX: 0 units
- ✗ Fresno, CA: 0 units
- ✓ Reno, NV: 1 units
- ✗ Asheville, NC: 0 units
- ✓ National: 9 units
Total Available: 18 units
Inventory Last Checked: December 4, 2025 at 1:00 AM UTC
Thank you for Shopping at Knobtown Cycle!
When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.
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