B20 rod-stroke ratio vs. LS r-s- ratio

[tshajlij]

I've heard that the LS has the worst rod to stroke ratio. Does the B20 have the same or worst problem?

[B20BbenN]

the 2 engine have the same rod ratio and the same stroke"same crankshaft" but the b20 have a 84mm bore .Ls=81mm

[GSRturbospec]

b18b bore 81mm, stroke 89mm, rod 137mm, rod ratio 1.54, head volume 45cc

b20 bore 84mm, stroke 89mm, rod 137mm, rod ratio 1.54, head volume 45cc

they are pretty much identical, but it's just the 3mm difference in the bore