Building my 400 w/ Aussie heads. Hp/Tq?
I agree on the detonation part. If I were you I would get the KB reverse dome pistons desgined for a cleveland, and have the 400 rods bushed to allow their use. You will still have adequate compression, but your qunch area will be at its greatest level. ITs the only thing thats gonna keep that thing from pinging on anything other than VP113. Even then, you may have to get creative and look into some of the old water injection kits for when your towing or other extreme load situations.
Those that say it cant be done should say so quietly, so as not to disturb those who are doing it.