The front corner motor mounts were only used in 55-57 both cars and trucks. You cannot use these in a 3 point arrangement or you will break the bellhousing over time. You will need to keep the mounts on the sides of the bellhousing or switch to the more typical side motor mounts. All SBC's have the front corner mounts, at least through the mid '90's anyway. 55-57 blocks do not have the side mounts.
[ 01-29-2002: Message edited by: gearhead ]
