z51 is a suspension option for the vette. it only has leaf springs in the back, and its only one in a transvers location. i know this because i've worked on vette's. in the front it has double wishbone's and a coilover shock. so what chevy gets 500hp out of 427ci. i can get 500hp out of 2.0L's. your point? i think i just proved my point that pushords suck.