S&S Cycle 4.32" Big-Bore Power Package with Forged Pistons - Harley Touring, Softail & Dyna

The S&S Cycle Power Package combines 4.32" big-bore cylinders, forged pistons, a high-lift cam, cam plate, and oil pump in one comprehensive kit. Designed to add reliable horsepower to Harley-Davidson engines, this matched-component approach saves money versus buying parts separately while ensuring cam timing and oil delivery work together seamlessly.

Why riders pick this

• Complete big-bore engine kit
• 4.32-inch big-bore cylinders
• Forged piston set for durability
• Matched high-lift cam and cam plate
• Includes oil pump for optimal lubrication
• Engineered for reliable horsepower gains

This kit provides a robust foundation for a high-performance build, eliminating the guesswork and potential compatibility issues often encountered when piecing together an engine upgrade. Riders looking for a significant boost in power and displacement with proven reliability will find this S&S Power Package an excellent choice.

Integrated Power and Durability

• Features durable 4.32-inch big-bore cylinders
• Includes a matched high-lift cam and cam plate for optimized valve timing
• Comes with a robust forged piston set for increased strength
• Dedicated oil pump included to ensure consistent lubrication
• Complete bolt-on kit designed for straightforward installation

Engineered for Maximum Output

Upgrading to an S&S Cycle Power Package with forged pistons means you're building an engine capable of handling serious power. This kit is ideal for Harley Touring, Softail, and Dyna owners who demand maximum output and reliability from their V-twin. Remember to verify your specific model year and engine size with S&S Cycle to ensure perfect fitment and performance from your new setup.

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 310-1223D
• Category: Engine Components / Piston Sets - Powersports
• Weight: 44.19 lb

Common questions