S&S Cycle 590G High-Lift Camshaft - Harley 124+ Cubic Inch Engines
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.
The S&S Cycle 590G High-Lift Camshaft is purpose-built for big-displacement Harley-Davidson engines, specifically those at 124 cubic inches and larger. This aggressive cam profile is engineered to deliver maximum top-end horsepower, extending the powerband well beyond stock redline for serious performance riders. It's the choice for uncorking the full potential of your large-cube V-twin.
Why riders pick this
- Optimized for 124+ cubic-inch Harley engines
- Delivers maximum top-end horsepower
- Extends the usable RPM range
- Includes all necessary gaskets and hardware
Designed for the rider who demands peak power, the S&S Cycle 590G High-Lift Camshaft pushes the limits of what your big-inch Harley engine can achieve. Its aggressive grind is optimized to carry power deep into the RPM range, making it ideal for high-performance applications where top-end pull is paramount. This cam isn't just an upgrade; it's a statement of intent for your motor.
Unleash Top-End Dominance
- High-lift 590G profile specifically for 124+ cubic-inch engines
- Engineered for maximum top-end horsepower and extended RPM range
- Includes all necessary gaskets, bearings, and installation hardware
- Designed to elevate the performance of large-displacement V-twins
Essential Supporting Upgrades
To fully capitalize on the S&S Cycle 590G High-Lift Camshaft, you'll need to pair it with adjustable pushrods and heavy-duty valve springs. These components are critical to ensure safe and effective operation with the cam's aggressive profile and higher lift. This is a cam for serious builders looking to extract every ounce of power from their big-bore Harley or Indian.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 330-0732
- Category: Engine Components / Camshafts
- Weight: 4.18 lb
Common questions
What size engine is this 590G cam designed for?
This S&S Cycle 590G high-lift camshaft is engineered specifically for Harley-Davidson engines with 124 cubic inches or larger displacement to achieve its intended powerband and performance gains.
What additional parts are required for installation?
Yes, to install and safely operate this cam, you must also purchase adjustable pushrods and heavy-duty valve springs. These are critical for proper valve train function with the aggressive cam profile.
Will this cam work on smaller displacement engines?
No, this cam is not recommended for smaller displacement motors. It is specifically designed for 124 cubic inch and larger engines, and smaller engines will not achieve the intended powerband or benefits.
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 | T14-663373 |
| WEIGHT | 4.18 lb |
