TBH I think was what gave me the idea now you mention it.Someone on here (Ampwhu I believe) has modified some 4 pot ones with a turnbuckle so they fit the V8.
I'm also not sure how exactly you can tell one side from the other. Look the same to me but are not.
I might have dreamt about it, but i thought there were casting marks LH and RH somewhere on the rod.