Harley Davidson Evolution Heads
The newly designed Harley-Davidson Evo engine relied on aluminum heads and cylinders - as opposed to the heavy cast iron parts of the Shovelhead their previous Big Twin bike V-Twin engine and other predecessors such as the Sportsters Ironhead engine led to a light weight engine with improved air-cooling efficiency.
Harley davidson evolution heads. All orders over 89 receive Free shipping. Harley Davidson Evolution Heads Thermal Coated Heads Pistons. These bolt-on modifications include camshafts and milling of the heads.
Stage Two Evolution Harley-Davidson engines involve any stage one changes plus changes to some internal bolt-on engine components. We achieved 954 horsepower at the rear wheels using un-ported Harley-Davidson 1340 heads and increasing the compression with domed pistons. R.
The most popular sector of this still growing market is the Twin Cam 8896 based engines with the EVO still holding its own. Where all STD cylinder heads are available and can be used as stock replacement assemblies that enable enhanced performance capabilities their true strength among professional cylinder head and engine builders lies in the almost limitless casting options. 1983 To avoid betting the farm on Evo the shovel was kept in production for a time.
They are also called Evolution or Evo. Contrary to popular myth serious power can be made with stock Harley-Davidson heads without reshaping the combustion chambers polishing the ports and combustion chamber using a larger intake valves or making. It was made in the 1340 cc displacement for Harley-Davidson Big V-twins bikes replacing the Shovelhead engine until 2000 when the last EVO was placed in a production factory custom FXR4.
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In 1999 it was replaced by the Harley. SS EVO ported and flowed heads Honda 65 Clone Race Kart Head. Ready for a day at the track or a week of touring with friends this package is what riding a Harley Davidson is all about.