I do know for a fact the Fomoco 289/302 is a few inches less wide , but a few inches longer.It's not so much the width as it is the placement of the exhaust ports and head design.I bet the old Buick Nailhead V-8 would slide right in there, available in 425 cubes too.I have seen a few Chevy smallblocks in AD's using the stock steering box just moved over slightly.
