I have a 68 project that my son and I are working on. We also have a wrecked 2003 Roush with the 4.6 and the T3560 transmission. Has any one ever fit the 4.6 into a 68? In looking at it, I'll need to go with a coil over kit that replaces the stock front suspension or go with a big block set up so the engine will fit. The next question is will the T3560 tranny fit in the 68 transmission tunnel or will I have to enlarge it? Look forward the the responses.