Harley Davidson Evolution Heads
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This what a stock EVOLUTION combustion chamber looks like with stock sized valves.
Harley davidson evolution heads. The Evolution engine is an air-cooled 45-degree V-twin engine manufactured from 1984 by Harley-Davidson for the companys motorcycles. This engine is not to be confused with the Sportster Evo same name different engine. They are also called Evolution or Evo.
Harley-Davidson Heritage Softail. 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. We see the whole range of this market on a daily basis here at GMS.
1340 FORGED PISTONS - 1051 010. R. We achieved 954 horsepower at the rear wheels using un-ported Harley-Davidson 1340 heads and increasing the compression with domed pistons.
Dennis Kirk has been the leader in the powersports industry since 1969 so you can rest assured that we have your back when it comes to bringing you the best Cylinder Heads for your Harley-Davidson. Kawasaki Vulcan 1470CC Heads. Not only that but we have them all in-stock and ready to ship to you today.
The stock valve seats are 1633 ID. 1983 To avoid betting the farm on Evo the shovel was kept in production for a time. Early Evolution heads were sand-cast in alloy.
62cc combustion chamber 1850 intake1610exhaust 575max valve lift 165 LBS. The dirty one is stock and the one that has been blasted has some work done on it. Most MEGAFLO prepared STDs are.
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