I can't quite answer this. Maybe someone else knows.
The one's off the mid 80's Olds Cutless and Buick Regal (same car) will work with some modifications. However, the one that mounts on a Buick 3.8 engine car with A/C is only 105 amps. Played around with these 'cause I have one car with the 3.8.
Don't stick my head under any Caddy hoods. Haven't found anything that interests me. I don't know if the alternator cases between the smaller Buicks and larger models are the same. Mounting it and changing the pulley is the problem as you know. If you do end up grabbing one, take all the screws, nuts and the connector. Hardware is metric.
72ssabody,those alt. are HUGE you can get a si alt in 94 amp advance part# p 7294-12 or go with the cs 105 or they make a 140 type cs alt. check the books at the part store they should have pics of mounting locations and hook-up locations.then pull one and look to see if it will work.hope this helps.JIMK
I've just read on other sites that to look out for the above cars as they have higher amp altenators. I've already converted my car over to the 10SI unit years ago and would like some more juice out of the alt.
A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more!