V-twin engines big block

Information to consider regarding the V-Twin engines, (in general). If not for weight the big block V-twins, typically 32 to 40 hp, with a redrive would power the Legal Eagle. Our final firewall forward flying weight needs to be in 90 pound area, (this weight varies on the aircraft weight) this would include engine, mounts, prop, carbs, filters, bolts, everything forward of fire wall. The small block V-twin weight fits into what we need. Question is if we can get the Hp and torque matched to a prop that will power our machine. It would be nice to build a lighter weight LEXL with allowance to mount the big block V-twin.

One thought on “V-twin engines big block

  1. Ed Pogue April 25, 2022 / 6:28 pm

    You can install a aluminum flywheel and reduce the weight considerably. Also you can modify the head and stronger valve springs and get 50 hp from the v twin. We did this to a harbor freight engine and installed it on a ultra lite. It weighted around 90 pounds with starter.


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