S&S Cycle 540G Camshaft for 124+ CI Big Bore - Harley Touring
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.
Unlock serious low-end torque and improved acceleration on your 124+ cubic inch big bore Harley-Davidson Touring engine with the S&S Cycle 540G camshaft. This cam is specifically engineered for riders who prioritize stump-pulling grunt and robust power delivery below 6000 RPM. Transform your Touring bike into a torque monster, ready to pull hard from any roll-on.
Why riders pick this
- Optimized 540G cam profile for maximum low-end torque
- Boosts acceleration in 124+ cubic inch engines
- Includes all gaskets, bearings, and mounting hardware
- Recommended for use with S&S Gear Drive Kits
- Designed for powerful performance below 6000 RPM
The S&S Cycle 540G camshaft is a high-performance upgrade designed for Harley-Davidson Touring models running 124 cubic inch and larger big bore engines. Its unique 540G cam profile is optimized to deliver a significant boost in low-end and mid-range torque, making it ideal for aggressive street riding and quick passes. This cam ensures your big-inch motor responds instantly to throttle input, providing exhilarating acceleration when you need it most.
Torque-Focused Performance
- 540G cam profile engineered for enhanced low-end torque output
- Significantly improves acceleration in 124+ cubic inch engines
- Compatible with S&S Gear Drive Kits for precise cam timing
- Includes all gaskets, bearings, and mounting hardware for installation
- Designed for optimal performance below 6000 RPM
Important Installation Requirements
To properly install the S&S Cycle 540G camshaft, you will need to purchase adjustable pushrods and heavy-duty valve springs separately, as these critical components are not included in the kit. While this cam can be used with a stock chain drive, S&S Gear Drive Kits are highly recommended for superior timing accuracy and overall valvetrain stability, especially in high-performance big bore applications. Professional installation and a custom dyno tune are essential to ensure your engine performs safely and to its full potential after this upgrade.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 330-0715
- Category: Engine Components / Camshafts
- Weight: 4.18 lb
Common questions
What additional parts are required for installing this S&S 540G cam?
You will need to purchase adjustable pushrods and heavy-duty valve springs separately. The kit does include all necessary gaskets, bearings, and mounting hardware.
Can I use this 540G cam with my bike's stock chain drive system?
Yes, this cam can be used with a stock chain drive, but S&S Cycle highly recommends pairing it with an S&S Gear Drive Kit for improved timing accuracy and overall reliability.
Is this cam suitable for high-RPM riding?
The S&S 540G cam is specifically engineered to deliver its best performance, particularly strong low-end torque and acceleration, below 6000 RPM, making it ideal for street applications.
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 | Camshafts |
| SKU | T14-663371 |
| WEIGHT | 4.18 lb |
