S&S Cycle 910-0733A 128ci Big Bore Kit Milwaukee-Eight Black Granite Highlighted Fins

The S&S Cycle 910-0733A is a 128 cubic inch Big Bore Kit designed for Harley-Davidson Milwaukee-Eight 114 and 117 cubic inch engines. This bolt-on performance upgrade features a striking black granite powder coat finish with highlighted cooling fins for a distinctive custom appearance.

Key Features:

• Increases displacement from 114/117" to 128 cubic inches with 4.250" bore and 4.5" stroke
• No machining required - direct bolt-on installation with no need to split cases
• Works excellent with stock cylinder heads for maximum versatility
• Black granite powder coat finish with highlighted fins for enhanced styling
• Includes all necessary gaskets and hardware for installation
• Made in the USA with S&S quality engineering

This big bore kit delivers substantial displacement increases without requiring crankcase modifications. Professional installation by a skilled technician is required, and an aftermarket tuner such as ThunderMax Autotune System is highly recommended to optimize performance. Upgrading to ARP cylinder studs is also recommended to avoid reusing stretched stock studs.