h22a4 Sleeves help

[david17]

what id the differ Darton Sleeves - Part# 400-160 -- (90mm max) M.I.D. and the Darton Sleeves - Part# 300-018 -- (87mm) Fanged sleeve.

i know one is fanged and one is not.

i want to bild a all motor h22 so what whould e beter