Cylinder Head Kit – Black. Fits Sportster 1986-2003.

Features & Benefits:-

* Requires S&S Piston kit # SS92-2016 or SS92-1081.

* Sportster 1986-1990 need thread conversion insert 1/2in.-13 to 5/16in.-18 SS50-8151

* Takes Big Twin 1984-1999 spark plugs.

* 640’Lift.

These S&S Super Stock cylinder heads for 1986-2003 Sportster models feature a specially shaped combustion chamber and require special pistons that must be purchased separately. (Not compatible with stock style flat topped pistons) Large 2.000in. intake and 1 .605in. exhaust valves and high flowing ports supply plenty of air. Compatible with cams with lifts up to .650in.. Compatible with stock 3-1/2in. or 3-5/8in. bore engines.

* Order appropriate gasket kits separately for your specific bore size.

Proudly Made in the USA by S&S Cycle !