S&S Cycle Billet Heads - Harley Dyna 2006-2012
About S&S Cycle
S&S Cycle has built American V-twin performance parts in Viola, Wisconsin since 1958 — flywheels, carburetors, cams, cylinder heads and complete crate engines. When a Harley owner talks about a 124, a 128 or a 131 build, they are usually talking about S&S. Few names carry more weight with engine builders in this space.
S&S Cycle Billet Heads are precision-engineered replacement cylinder heads specifically for 2006-2012 Harley-Davidson Dyna models. Crafted from billet material, these heads offer superior strength and are designed for a direct bolt-on installation, making them an ideal upgrade for increased displacement and overall engine performance. Elevate your Dyna's power with S&S Cycle quality.
Why riders pick this
- Billet construction for superior strength
- Direct bolt-on replacement for 2006-2012 Dyna
- Supports increased displacement and performance
- Engineered for 4-stroke Harley Dyna engines
- Provides a robust foundation for performance builds
When you're pushing the limits of your Harley-Davidson Dyna, upgrading your cylinder heads is a critical step towards unlocking more power and durability. S&S Cycle Billet Heads provide a robust foundation for high-performance builds, offering enhanced strength over cast alternatives. Designed as a direct replacement, they simplify the upgrade process, allowing you to focus on getting more out of your V-twin.
Unleash Your Dyna's Potential
- Constructed from billet material for exceptional strength and rigidity
- Direct bolt-on replacement for stock 2006-2012 Dyna cylinder heads
- Engineered to support increased displacement and performance gains
- Delivers S&S Cycle's renowned quality and engineering
- Optimized for 4-stroke Dyna engines
Building a Performance Dyna
These S&S Cycle Billet Heads are an excellent choice for Dyna riders looking to build a serious performance machine. They are designed to integrate seamlessly with various piston and bore combinations, allowing for significant displacement gains. While they are a direct bolt-on, maximizing their potential often involves a comprehensive engine build and a custom dyno tune to ensure optimal air-fuel ratios and timing for your specific setup.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 900-0966
- Weight: 13.04 lb
- Category: Engine Components / Heads
Common questions
Will these S&S Cycle Billet Heads fit my 2013 or newer Harley-Davidson Dyna?
No, these billet heads are specifically engineered for 2006-2012 Harley-Davidson Dyna models. Later model years require different cylinder head specifications.
Are these heads a direct bolt-on replacement for my stock Dyna heads?
Yes, these S&S Cycle Billet Heads are designed for a direct bolt-on installation, replacing your stock Dyna heads without the need for adapters or extensive modifications.
Do these heads come assembled with valves and springs?
The description indicates these are billet heads for increased displacement and performance. Please confirm specific inclusions like valves and springs with S&S Cycle or your builder before purchase, as configurations can vary.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | S&S Cycle |
| TYPE | Heads |
| SKU | T14-664012 |
| WEIGHT | 13.04 lb |