S&S CYCLE 89 cc Super Stock® Cylinder Heads — Silver, Powder-Coated – 06, 12-17 Dyna, 06-15 CVO, 10-16 Trike, 10-11 Touring, 07-17 Softail

Fully assembled Super Stock® cylinder heads come ready with springs and valves for direct installation on compatible engines. 🔧

Designed for '06–'16 engines with a stock crankcase, they are well suited to touring bikes and other heavy vehicles and support slightly larger stroker or big-bore setups up to 110".

The combustion chamber delivers a slightly higher-than-stock compression ratio for improved performance in larger displacements while remaining manageable.

• Large 2.000" intake and 1.605" exhaust valves preserve port velocity for strong low- and midrange response while supplying enough air for enlarged engines.
• Intake ports flow 264 CFM compared to stock heads at 182 CFM.
• High-performance valve springs allow the installation of camshafts with up to 0.650" lift.
• Compatible with stock rocker boxes, exhaust, and intake manifolds when the compression-release configuration allows.

Compatibility notes: will not work with S&S compression releases in a late model twin cam that has Harley Davidson® ACR installed. Not compatible with '14-'16 FLHTK/FLHTKL, FLHTCUTG Twin-Cooled motors or '17 touring models. Not for models with OEM compression releases. If S&S compression releases are used, S&S rocker boxes must be used. Made in the USA.