S&S Cycle V124 Long Block Engine | Performance Harley Davidson Engine Upgrade (Evo Big Twin 1984–2000)

 Performance Harley Davidson Engine Upgrade by S&S Cycle

The Harley Davidson engine upgrade — S&S Cycle V124 Long Block — delivers unmatched performance and reliability for Evo Big Twin models (1984–2000). Engineered for riders who demand race-level power, this Harley performance engine transforms your bike into a torque-driven machine.

⚙️ High-Output Engineering

Built with precision-balanced components, the S&S V124 engine produces serious horsepower and torque gains while maintaining legendary reliability. Whether cruising highways in the US, touring the UK, or riding open roads in Australia or Canada, this Harley Evo engine upgrade guarantees consistent performance.

🔧 Durable Design for Classic Harley Models

This Harley Big Twin engine features forged pistons, a high-flow oil pump, and precision-machined cases. It’s a direct-fit replacement for Evo Big Twin 1984–2000 models, offering better cooling, smoother throttle response, and enhanced fuel efficiency.