[Tim Brewer]

Remember, this engine IS a 351. You only need to think about the difference in swaping a 351 for a 302, plenty of info here on this site. The weight difference between the two engines isn't much, def not enough to have to rework your suspension. Maybe only a little stiffer front springs. I'm not familier with you guy's engineer's report, but unless they CC your heads, I would just tell them it's a 351. Size? I can't imagine any Cobra replica having trouble fitting a 351 in it.