You don't need custom pistons......

I've posted this many times on here but you don't need expensive custom piston for a 400 build. Tim Meyer at TMI sells off-the-shelf pistons that he has made for 400 and 434 stroker builds. He has pistons for stock open chamber heads and for use with closed chamber heads--either Aussie 2V or US 4V. His pistons correct the compresssion height issue that is common on the 1972 and later 400's.