I'm hoping George or other 427 expert will chime in on this.
I think I've spotted something interesting....and learned a new trick for a quick ID of a 68 Hydraulic lifter block.
With heads on and intake off, every FE block has "352" cast into the inner wall above the lifter gallery. All except the Hydraulic lifter block which has 427 cast into it. I've seen it twice now. Once on my block and once on a block belonging to someone we all know well, sitting in an engine shop.
Across the aisle in the shop was a solid lifter S/O block and it had the requisite and expected 352 cast into it.
Is this just coincidence or have others seen this oddity too? If it isn't coincidence or just an oddity, it sure is a quick way to spot a hydraulic lifter 427 block along with the raised
oil passage down the center of the valley.
Al