[gmachinz]

I’m late to this convo but for future reference for guys doing a similar swap-I’ve got a lot of experience swapping late model alternators into all kinds of vintage GM stuff. You have to realize it isnt just about total amps that make the CS alternators superior to SI style ones its mainly about the regulator voltage output speed being MUCH faster to react to changes in voltage drop-and the CS alts shed heat much better. Size wise there is ONE direct fit CS alternator that fits the v-belt setups-simply swap pulleys but retain the CS cooling fan. Application is a 1988 Olds Firenza with a 2.0 FI (122cu) engine.