LS1 dressed is around 430lbs, N54 dressed is the same. With all the turbo hardware the n54 is probably a little heavier all said and done. The LS will undoubtedly fit better and push the weight lower and more central.how much does a LS1 weigh compared to N54? Bet the LS1 is shorter too and can move the weight farther back.
would be awesome in a 135.