S&S Cycle 310-1388A Power Package Engine Performance Kit

S&S Cycle Power Packages are complete big bore and cam chest performance kits engineered to deliver significant horsepower and torque gains over stock displacement. Each kit bundles S&S's proven big bore cylinders, forged pistons, performance camshaft, cam plate, high-flow oil pump, valve springs, lifters, and pushrods into a single, cohesive upgrade package.

Key Features:

• Complete bolt-on big bore and cam chest kit — no case machining required
• S&S forged pistons matched to big bore cylinders for optimized compression
• High-flow S&S oil pump and cam plate included
• Performance camshaft, valve springs, lifters, and pushrods included
• Available in gear drive or chain drive cam configurations
• Designed for big, reliable power with straightforward installation
• Made in the USA

S&S Cycle Power Packages are engineered for riders who want a complete, well-matched performance upgrade without sourcing individual components separately. All components are factory-matched for compatibility and optimized power delivery.

Note: Not legal for sale or use in California on any pollution-controlled motor vehicle. Not legal for sale or use on any EPA pollution-controlled motor vehicle.