S&S 89cc Cylinder Head Kit – Black. Fits Twin Cam 2006-2017.

Description

Features & Benefits:-

* Accepts S&S or OEM pistons.

* Accepts up to 640 lift cams with S&S pistons or if using with stock pistons valve reliefs must be machined in the pistons due to larger valves.

* 2.000in. Intake Valves & 1.605in. Exhaust Valves.

* Includes Lower Rocker Gasket to use with OEM rocker covers # SS90-4120

* Includes 4 Head bolts – use in place of the in.shortin. H-D head bolts # SS930-0027

* Includes Decompression Release Block Off Plugs # SS90