89cc Cylinder Head Kit – Black. Fits Twin Cam 2006-2017.
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 -4916-2
* Sold as a Pair.
* OEM 96ci = 8.9:1 Compression Ratio.
* OEM 103ci = 9.3:1 Compression Ratio.
* OEM 110ci = 9.8:1 Compression Ratio.
* Also Fits TC Throttle-by-Wire Models 2008-2017
* Not compatible with Twin-Cooled models (Water Cooled)
Proudly Made in the USA by S&S Cycle !