S&S CYCLE - 91-7210 - Cylinder - 3.500” - Natural Finish - Evolution Big Twin
The S&S CYCLE 91-7210 is a purpose-built cylinder designed and tested to perform correctly in the conditions and applications it was made for. 3.500” bore cylinders are for 80” or 89” big twins with stock, S&S® Performance, or Super Stock® heads. Thicker castings, larger cooling fins, and better wear resistance than stock cylinder, giving you a level of quality that holds up across the full service life of the component. Bored slightly under normal size and are not honed. Stock replacement with cast iron liner. Includes dowel pins. The 91-7210 delivers exactly what riders need from a quality aftermarket component. Sold as a pair.
Features
- 3.500” bore cylinders are for 80” or 89” big twins with stock, S&S® Performance, or Super Stock® heads
- Thicker castings, larger cooling fins, and better wear resistance than stock cylinder
- Bored slightly under normal size and are not honed
- Stock replacement with cast iron liner
- Includes dowel pins
- Made in the USA
- Super Stock® pistons for 80” engines can be used with stock 80” flywheels without rebalancing.
Specs
- Displacement: 80”
- Style: Evolution
- Units: Pair
- Type: Engine
- Displacement: 89”
- Product Name: Cylinder
- Riding Style: Street
- Color/Finish: Natural Aluminum
- Bore Size: 3.500”
- Material: Aluminum
Frequently Asked Questions - S&S CYCLE - 91-7210 - Cylinder - 3.500” - Natural Finish - Evolution Big Twin
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
