To clear up a little con fusion I run out in a cold an took some pictures of a CA engine kinda niked. Ya git to look in an see some privet parts like the hole in the crankshaft.
Now if ya click on next ya kin see it is not a D's engine. Now ifins ur still in need of a better look I do have a D 15 block I kin slid up beside it an took a nudder picture of em side by side.
Now if ya click next agin you can see a coupla a rods. Guess which one wont work in a B. If ya have some of those dozens of CA's around ya might jus want to try ta find the holes that squirt oil on the rods, Aah they jus aint there is they. Thats why they drilled the crankshafts.