OMG Hillbilly Engineering! Just ran across an ad for a "427", doesn't look too bad until I came across this in the description- "The block never came with cross bolts mains so I put bolts in". Huh? So I search thru the pics, and it's obviously a marine block with the big cut through the oil gallery, and then the pic of the "bolts". Look carefully, looks like some "bolts" just screwed up against the sides of some stock main caps- there are no bolt bosses on those caps...