S&s cycle cyl.hd.3.625"66-78bt 2plg

Super Stock® replacement heads for stock bore 1966–'84 Harley-Davidson® shovelhead engines maintain a stock appearance but offer improved port designs for better performance. These are also replacement heads for Flathead Power SH-Series engines. Features and benefits include: Stock appearance and improved performance S&S .590" lift triple steel valve springs Fits stock intake manifolds and exhaust pipes Rocker cover fastened with 5/16"-18 hex-head cap screws Front and rear cylinder head complete with valves and springs Fits band style manifold Head, rocker and exhaust gaskets included Mounting hardware and instructions included Dual Plug 3.625" Bore