This part is from Nexus
cost:
9450
mass:
1.54
category:
Engine
TechRequired:
veryHeavyRocketry
engine_data:
Control
{"isp"=>{"vac"=>385.0, "atmo"=>350.0}, "propellant_ratios"=>{"LqdHydrogen"=>2.35239, "Oxidizer"=>0.166667}, "max_thrust"=>1502.0}