S&S Cycle 310-1057D SSC Power Pack Engine Performance Kit

The S&S Cycle 310-1057D SSC Power Pack is a complete performance engine upgrade kit engineered for Harley-Davidson motorcycles. S&S Cycle's Power Packs take the guesswork out of building a high-performance engine by bundling precisely matched, factory-tested components into a single, cohesive kit — ensuring optimal compatibility and maximum power output right out of the box.

S&S Cycle is one of the most trusted names in American V-Twin performance, with decades of experience developing parts that meet and exceed OEM standards. Power Packs are designed to deliver significant gains in horsepower and torque compared to stock configurations, making them ideal for riders looking for a serious performance upgrade without piecing together individual components.

Key Features:

• Complete matched-component power upgrade kit for Harley-Davidson V-Twin engines
• Engineered and tested by S&S Cycle for optimal power and reliability
• Eliminates compatibility guesswork — components are pre-matched at the factory
• Designed for significant horsepower and torque gains over stock
• Built to meet or exceed OEM quality standards
• Backed by S&S Cycle's reputation for American V-Twin performance excellence

Whether you're building a touring bike, a custom, or a performance street machine, the S&S Cycle 310-1057D Power Pack provides a straightforward path to serious engine performance. Professional installation by a qualified V-Twin technician is recommended.