HARLEY Cylinder Head Set with Polished Rocker Box Fits 1978-1984 FL, 1978-1984 FX, 1978-1984 FL,

Set is assembled with cast iron guides valve stem seals polished rocker box and nitrated valves. For use on 74 inch or 80 inch models with Shovelhead barrels. Heads have a complete valve job for maximum flow horsepower and torque. Heads are single plug and are assembled with polished rocker boxes. Max lift .450. Sold as a pair. FITS HARLEY: 1978-1984 FL, 1978-1984 FX, 1978-1984 FL, 1978-1984 FX,