Home / Photos / A Jolt of Power, Texas Style Photos A Jolt of Power, Texas Style By March 23, 2010 Texas Turbine’s TPE331 conversion brings extra muscle to the Cessna Caravan and Grand Caravan.Texas Turbine’s TPE331 Caravan and Grand Caravan conversion offers improved performance, economy and flexibility. (Photo by Virgil Preachy) The conversion is a complete kit that includes a new Honeywell TPE331-12JR engine, Hartzell four-blade prop, new engine mount, starter/generator, engine instruments, cowlings and batteries, oil cooler, electrical junction box and generator/alternator controls. Texas Turbine Supervan 900 More From Photos A Fond Memory: Sun 'n Fun Aerospace Expo 2023 Gallery: The Evolution of Van's Aircraft Gallery: Tails on Display at Oshkosh Gallery: Wednesday at Oshkosh Photos: <i>FLYING</i> Honors Award Winners at Adventure Party First Look: Supernal's Air Taxi Passenger Cabin