When was the first HD Shovelhead engine made?
Many of the recommend modifications are closely aligned with performance work being done in the 90’s, not 1970’s technology as practiced by many Shovelhead mechanics.
How many miles does a 1980 Harley Shovelhead have?
1980 Harley Davidson Shovelhead FLH. 32,000 original miles. Everything has been gone through and is in great working order. Many upgrades have been done. This bike needs nothing. The original seat, tanks, fenders and saddle bags are included. They are the stock Harley two tone tan.
How many jets are in a Shovelhead engine?
Use 185 main jet and a 100 idle jet. Use main fuel nozzle per figure 0. If the float bowl has been for accelerator pump bypass, the bypass must be closed off. Exhaust pipes and intake manifold will have to be modified as a result of the lower cylinder heads.
Is there a Shovelhead engine for Nightrider performance?
At least one Shovel engine has been built using many of the ideas present here, with excellent results. As a favor to the Shovelhead fans that frequent the Nightrider Performance Site, the original text and drawings are being presented. Changes used in the current Shovelhead engine build are also noted.
How big is the spark plug on a Shovelhead?
Shovelheads and Big Twin Evos are all 14mm, while Evo Sporties and all twin cams are 12mm plugs. They’re obviously not interchangable. The heat range is another physical aspect of a plug. There’s a common misconception that the “hotter a plug is, the hotter spark it creates”. This is incorrect.
Can a Shovelhead engine run on an Evo?
As a favor to the Shovelhead fans that frequent the Nightrider Performance Site, the original text and drawings are being presented. Changes used in the current Shovelhead engine build are also noted. With modification like this, it is quite possible for a Shovelhead engine to run with the EVO and Twin Cam engines.