It was a "hot rod" F-150 with a HO 351.
Like you really need a "light in the but" street race truck for the general population.....
www.f150hub.com/trucks/bronco-f-150-nite.html
1986 F-150 Flareside 4x4, 351, 4-v, ZF5 speed. AC, Cruise, Tilt, Slider, Digital clock, Radio, Lariat seat, Pwr doors/locks