S&S CYCLE - 900-4320A - Roller Rocker Arms - 1.5:1 Rocker Ratio - Shovelhead '66-'84
For riders who demand quality in every component, the S&S CYCLE 900-4320A is a rocker arm built to the standards that experienced powersports enthusiasts recognize the moment they put it in their hands. Machined from 8620 steel heat treated forgings for maximum strength. 0.750” long S&S rocker arm bushing which provides 50% more load bearing surface than stock 0.500” bushings, giving you a level of quality that holds up across the full service life of the component. Can be oiled through pushrods when used with S&S Shovelhead-style tappet guides and pushrods. Compatible with stock and S&S billet Shovelhead-style rocker boxes. Includes two each of the front and rear rocker arms. Whatever the application demands, the 900-4320A gives you a component built to meet it. Sold as a set.
Features
- Machined from 8620 steel heat treated forgings for maximum strength
- 0.750” long S&S rocker arm bushing which provides 50% more load bearing surface than stock 0.500” bushings
- Can be oiled through pushrods when used with S&S Shovelhead-style tappet guides and pushrods
- Compatible with stock and S&S billet Shovelhead-style rocker boxes
- Includes two each of the front and rear rocker arms
- Made in the USA
- Some clearancing may be required when using stock rocker boxes.
Specs
- Riding Style: Street
- Application: Rear Exhaust/Front Intake
- Material: 8620 Steel
- Type: Roller
- Mounting Position: Rear
- Product Name: Rocker Arm
- Application: Front Exhaust/Rear Intake
- Mounting Position: Front
- Units: Set of 4
- Style: Forged
Frequently Asked Questions - S&S CYCLE - 900-4320A - Roller Rocker Arms - 1.5:1 Rocker Ratio - Shovelhead '66-'84
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.
