Is an Evo a Shovelhead?
First the obvious differences between the Shovelhead and the Evo: Tolerances: Overall the Evo is machined to one thousandth inch where the Shovelhead is machined to five thousandths. Cylinders: The Evo design uses an iron core encased in aluminum casting where the Shovelhead is cast iron throughout.
When did Harley stop using Evo motor?
2000
It was made in the 1,340 cc (82 cu in) 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 (FXR2 and FXR3 were the first CVOs).
What kind of engine does a Harley Shovelhead have?
1976 Harley-Davidson Shovelhead , 1976 Shovelhead, completely rebuilt engine. Engine has been bored 30 over so it is about 1340cc. It has a 5 speed transmission. It has been converted from a points condenser to an electronic Dyna. I have put a lot of chrome and new parts on this bike.
How much horsepower does a shovel engine make?
A good Shovel engine should make about 10% less power than a comparable Evo. This means your 80 CID Shovel can make 70-80 horsepower without to much trouble. The Horsepower Gallery provides an extensive list of bikes , the power they produced and the major engine components. This list covers Evolution, Twin Cam 88/95 and Shovelhead engines.
Which is more reliable a Shovelhead or EVO?
Shovelheads can be constructed to be more powerful and more reliable than any Evo. Many racers prefer the shovelhead because it is easier to modify and capable of tremendous extremes of operation. You can get an incredible variety of specialized parts, including high performance cases, pistons, valves,…
How did the Shovelhead motor get its name?
In 1966, Harley-Davidson unveiled the powerful Shovelhead motor, which took its name from the coal shovel shape of it’s rocker covers. Although workmanship on the this motor is believed to have suffered during Harley’s temporary merger with American Machine and Foundry Co.
Shovelheads can be constructed to be more powerful and more reliable than any Evo. Many racers prefer the shovelhead because it is easier to modify and capable of tremendous extremes of operation. You can get an incredible variety of specialized parts, including high performance cases, pistons, valves,…
When did Harley Davidson stop using the Shovelhead engine?
The Shovelhead soldiered on until 1984, when the Evolution engine—essentially new aluminum head and barrels on the old crankcases—began to take over. A serious effort was made to call it the Blockhead, but the factory wanted a little more elegance and their constant reference to the “Evo” motor won out.
In 1966, Harley-Davidson unveiled the powerful Shovelhead motor, which took its name from the coal shovel shape of it’s rocker covers. Although workmanship on the this motor is believed to have suffered during Harley’s temporary merger with American Machine and Foundry Co.
Why are there loose bolts on my Shovelhead?
Loose Bolts Re-torquing or tightening bolts on a Shovelhead is a common practice due to the amount of vibration from the motor. Just tightening a loose bolt will do little for the performance of the motorcycle, however. The bolt must be properly torqued to the right specifications.