This part is from KSP Interstellar Extended
cost:
300000
mass:
16
category:
Engine
TechRequired:
hidden
engine_data:
standard
{"isp"=>{"vac"=>5000.0, "atmo"=>100.0}, "propellant_ratios"=>{"LiquidFuel"=>1.0}, "max_thrust"=>5091.0}
resources:
ThermalPower
3000.0
Megajoules
10.0
WasteHeat
200000.0
ElectricCharge
800.0
UF4
10.0