Will an alternator off a '92 fit an LT1?

 

I think the mounting ears are different

 

In GM-High Tech, a guy is installing an LT1 into his 89 Formula and used an L98 alternator since it was smaller and lighter. Looking at teh two, the mounting ears look the same.

 

I'd say no. Third gen alternators are 105 amp and 4th gen are 140 amp. I'm going off of autozone's web site. The part number for the forth gen is: 1429-6-7 and the third gen is: DL1341-5-11. Hope this helps!

 

Part numbers are going to be different because they have different connectors and amp ratings. But you can change the connector on the harness and up the amp rating on the alternator with a kit or having a shop do it. the alternator that the guy in GM high tech was a Promaster that puts out 90amps at idle and 140amps at cruise

 

OK, so the mounting ears are the same. Thanks.