It would fit easily, those are very small turbos. You would probably have to give up your A/C, and run a serpentine belt setup. Definitely modify the radiator core support to fit the intercooler. If it was just for racing you wouldn't have to modify very much. Because you can eliminate power steering, alternator etc. My SN95 Mustang friends put these in their cars all of the time. If you've seen the engine bay from one of these cars you would cringe. The modular motors are wider than the 460-429's especially the Dbl overhead cam version's. As a matter of fact I've seen 460's installed in these car's as well. And they are taller, but they do have to use a different hood. If you were going keep everything ie A/C and power steering. That would definitely take some some creative engineering, and serious fabrication skills.
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Squirlye, 86 F-150 short bed, 300 I6, 4x4, 4 speed, HEI distributer with computer delete. And more to come.