Thank you for interest in the S&S high performance CNC Porting service. This program is currently set up for most 1999-2017 Twin Cam heads (excluding Twin Cooled). Look for M8 to be added in the near future!
Fill out this form with basic information about you and your bike and one of our Tech Team will respond within 24 hours with exact pricing and details on how to prepare and send in your heads for CNC porting.
Approximate turnaround is 2-4 weeks.
S&S CNC Cyclinder head porting is available for 1999-2017 big twin engines (except Twin-Cooled™ and CVO models)
- Ideal for 88" - 124" engines
- CNC machined ports for a consistent performance increase from stock heads
- Great throttle response, high velocity port without losing low RPM torque
- Assembled with performance valves and springs ready to bolt-on
- Choice of .585" or .650" lift valve springs
- Combustion chambers are available in the following volumes:
- 83cc-Generally used for stock 88" up to 106" engine displacements
- 85cc- Same as stock Twin Cam 88® and 96™ engine displacements
- 87cc- Recommended for up to 117" engine displacements
- 90cc- Generally used for 124" and up engine displacements
- Available in factory black or silver
- Send your stock heads to S&S
- Get the same set of heads back with CNC machined ports
- The best option for heads with a special cosmetic treatment
DISCLAIMER:
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.
