This part is from UTech Nuclear Science Ink.
cost:
59000
mass:
3.1
category:
Engine
TechRequired:
heavyRocketry
engine_data:
standard
{"isp"=>{"vac"=>62050.0, "atmo"=>0.001}, "propellant_ratios"=>{"HydrogenFuel"=>1.7777777777777777, "Lithium7Fuel"=>1.0}, "max_thrust"=>960.0}