• Available 117 M8 models
• 117 to 128" big bore kit
• Black Granite with Highlighted Fins
• Bolt on kit. No Machining Required
• includes gaskets and hardware required for installation
• 4.250" bore
• Forged Pistons
• 11:1 compression ratio
• Not honed.

DISCLAIMER: FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY.

Fit: 

• Harley-Davidson M-EIGHT 117" Engines