Harley Davidson Evo Engine Years

The Evolution engine is an air-cooled 45-degree V-twin engine manufactured from 1984 by Harley-Davidson for the companys motorcycles.

Harley davidson evo engine years. Blockhead 1984-99 All Blockheads have the same displacement of 80 cubic inches. Harley Evo Evolution Engine Overview. After almost 20 years the engine replaces the Twin Cam engine from which it differs markedly through its four-valve technology and better response from the speed cell.

From 1970 to 1980 Harley used an alphanumeric year code. 1960s and Older Engines. The engine numbers where 10 digit numerical IDs.

The key to what the numbers are is in the front section of the parts list for your bike but it only covers the year letters for the years the book covers as my softail is a 92 i had the correct parts list that gave me the correct year code Brian. Basically the evolution engine which is commonly known as Evo is a V-twin engine which is manufactured by Harley Davidson Company for its popular bikes. The Evolution engine is one of the first motorcycle engines made by Harley.

The larger Evolution engine however was replaced by the Twin Cam 88 engine in 1999. This engine which is 45-degree air cooled came into the market by the year 1984. What took so long is a roundabout way of saying thats why the Evolution engine took seven years in development.

This engine system has a high engine shift capacity of 1340CC. You may see the engine displacement and year number there I just cant recall off hand. The pressure was on to get it right the first time.

1984 was the year Harley-Davidson introduced what many regard as their greatest engine and for a true blue motorcycle enthusiast who wants to be able to strip his bike down to the last nut and bolt and to be able to fix it himselfherself it is possibly. It was made in the 1. California 1988 - 88 Model Year 321 Day of Production.