Shovelhead V-Twin Engine Model R31

Shovelhead V-Twin  Engine Model R31

This is a mini version of Shovelhead Engine. It is reduced in a ratio of 1: 5, and the details of each part are truly restored.
The engine is 120mm long, 90mm wide, 110mm high. 1100g. The displacement is 4.2ml, the cycle diameter is 13mm, and the itinerary is 16mm. 
Use fuel as gasoline. The ignition device uses 3 1.5V small batteries (4.5V) to supply power.
This is a fairly complicated model that uses aluminum alloy, brass and stainless steel CNC processing and manufacturing. 
This is one of the most complicated engines we produced.
This is a very representative V -shaped dual -cylinder engine. Its cylinder angle is 45 degrees, 
Showhead is a classic engine heart
It is the successor of the previous generation of engine "Panhead". In 1966, the shape of the cylinder head was changed on the basis of the Panhead engine
The cylinder head of the shovel head engine adopts the cylinder head shape of an all aluminum version of the iron head Sportster
10% increase in power output
Because of the cylinder head design and inverted coal shovel
Therefore, this engine is also named "Shovelhead shovel head engine"
Between 1980 and 1984, there was only one 80 cubic meter version of the Shovelhead shovel engine
After 1984, Harley's new design of 80 cubic meters of Evolution began to prevail
The shovel head engine that got up early in the same year was shut down
This time also ended the era of shovel head engine 1966-1983.