This part is from Kerbal Historical Institute presents Original KSP Parts
cost:
390
mass:
0.5
category:
Engine
TechRequired:
advRocketry
engine_data:
standard
{"isp"=>{"vac"=>345.0, "atmo"=>85.0}, "propellant_ratios"=>{"LiquidFuel"=>0.9, "Oxidizer"=>1.1}, "max_thrust"=>60.0}