Product Description
S&S CYCLE 4″ Big Bore Bolt-In Sidewinder® Cylinder Kit – 100″ – Black
Key Features
- Bolt in – no machining, balancing or splitting the crankcases; install can be performed with engine still in frame
- Cast Ductile Iron Sleeve in cast aluminum for superior heat transfer
- 88″ engines are boosted to 100″
- 96″ and 103″ engines are boosted 110″
- 10.5:1 compression (w/ stock 85cc heads) makes for a very streetable and dependable engine that also responds well to performance cams
- Complete kit includes cylinders, forged pistons, rings, piston pins, clips and gaskets
- Not for use with S&S 79cc heads.
Technical Specifications
- Weight: 22.11 lbs
- Supplier Number: 910-0646
- Unit of Measure: Kit
Current Warehouse Inventory
Stock by Location:
- ✓ Janesville, WI: 6 units
- ✓ Batavia, NY: 3 units
- ✓ Dallas, TX: 4 units
- ✗ Fresno, CA: 0 units
- ✓ Reno, NV: 5 units
- ✓ Asheville, NC: 3 units
- ✓ National: 20 units
Total Available: 41 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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