about to pick up 400 short block this weekend been looking at post to see what path for build up learned some interesting stuff why do people suggest dished pistons on 400's instead of flat tops like on 350's looking to do a mild street build on an extremely tight budget but I have all winter 400 is a 4 bolt main 1st time building an i need some insight 350-400 hp all im looking for going in a 78 chevy malibu also can buy 400 heads from neighbor for 50 bucks