Trucks like Shockwave, and some smaller class racing boats used the
Westinghouse J-34 (now called the Pratt & Whitney J-34). There were a lot
of surplus engines at one time. They were used in Navy P2V's, T2J's, and
even powered the Douglas X-3.

Link to Shockwave truck: http://auto.howstuffworks.com/question647.htm

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