I've seen a lot of posts and articles on motion reconverting past conversions such as 427s to 454s, then alum heads, blowers, etc, customers kept coming back over the years for bigger badder stuff, didn't any of yenko's customers or harrell converted cars for yenko ever come back for new bigger transplants, if so how were they numbered into that years records, as a new ys #. Also did dealers consider yenko the manufacturer for ss427s and not GM so if a blown motor or warranty issue arrised did the dealer not touch the car and send it back to yenko or kansas city for fixes and upgrades????