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

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 3.625" Bore