hey man hows it goin welcome to ae86dc
i can't help you out with these numbers
but what i can help you out with is,
all 4a blocks are the same same weather they are FWD or RWD (this includes 4ac, 4afe and 4age, both 16V and 20V) (except late model 16V and 20V blocks have more ribs inside, but i don't belive they are any different on the outside)
so basically what this means, is that you can go to your wreckers and find a car that has a 4a engine in it (fwd cars include, lots of corollas, rwd is limited to an ae71 and a sprinter) and you can just take the bolts out of these engines!!
save buying them brand new, as bolts are free from my wreckers!