Steve Levin
Master of Disaster
The 427 was used in the Mk2, 3, and 4. I would argue that is much closer than the 302. Also it will sound and go a hell of a lot better/faster.
Don't forget, though, that the primary goal of those cars was to win LeMans, which at that time had an unfettered Mulsanne Straight, so power was king. The cars never handled as well, but they more than made up for it in straight line speed.
If the car had raced on today's layout at LeMans, the big block never would have made sense.
Steve