Ok so I'm on another board and the are 2 guys wanting to sell me 351w blocks. 1 of them is a roller block from a 95 Lightening and it has been bored .30 over, has been align honed, vatted and cleaned. Well the other guy has a 351w that has been bored .40 over and it's an f4te? roller block (not sure what that is). Either one better over the other or is it the same block?