Product Description
S&S CYCLE Cylinder Head Kit – Super Stock™ – Natural – Evolution Big Twin ’88-’99
Key Features
- S&S heads give great performance, and work with additional upgrades
- Compatible with stock 3-1/2″ or 3-5/8″ bore engines
- Fully assembled, and include stainless steel valves and high-lift springs (up to .640 lift)
- Large 2.000″ intake and 1.605″ exhaust valves and high flowing ports supply plenty of air for big inch engines
- Must reuse stock headbolts
- Made in the USA
- S&S Super Stock piston kits are required.
- Intake manifold, pistons and gasket kits are sold separately.
Technical Specifications
- Weight: 24.56 lbs
- Supplier Number: 90-1004
- Unit of Measure: Pair
Current Warehouse Inventory
Stock by Location:
- ✓ Janesville, WI: 6 units
- ✗ Batavia, NY: 0 units
- ✗ Dallas, TX: 0 units
- ✗ Fresno, CA: 0 units
- ✓ Reno, NV: 1 units
- ✗ Asheville, NC: 0 units
- ✓ National: 7 units
Total Available: 14 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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