Hi Cliff; I've got the first part of a 455 ,The block!!! I had it cleaned and line honed and it needs to be bored to next common size (30 over) It is standard now but 2 cylinders had some marks and the machine shop says it will come clean at .030 so it's going to be ok to rebuild. Where is a good place to get the parts needed for the bottom end ? I have a 76 350 w/6x4's and intake w/q/jet that should work on top end ,Not a race eng. but maybe over some performance added ,I hope. Thanks