S&S<sup>®</sup> CNC Cylinder Head Porting Service For 1999-'16 HD<sup>®</sup> Big Twins and 2004-'16 Sportster<sup>®</sup> Models (Except CVO)

S&S® CNC Cylinder Head Porting Service For 1999-'16 HD® Big Twins and 2004-'16 Sportster® Models (Except CVO)

Item #: 106-5880
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$949.95
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S&S CNC Cyclinder head porting is available for 1999-2016 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 • Allow 1 week turn-around (does not include shipping)

 

 

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must use Screamin’ Eagle® high flow injectors, HD #27796-08, with kits over 107” CNC porting service is considered a special order and is available through S&S Dealers only.
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.