What engines can fit my buick leSabre custom?

From your question it sounds like you are just needing/adding parts....not actually swapping engines. For future reference, do a google search and you will find that the 2000-2005 LeSabre were the same basic design. There may be differences, example, you have a Custom. The Limited came with more standard equipment including leather seats, so if you find a Limited, there may me option on it that you can transfer to your Custom. Also if you are looking for interchangability on certain items....go to www.rockauto.com look up your 2000 Buick and then find the part. Click on the blue part number and it will tell you the other cars that use that part. Happy hunting

I have a 2001 Buick LeSabre with the engine size 3.8 could a 32 from another buick fit

I have a 2001 Buick LeSabre with the sides engine 3.8 I was wondering if another Buick engine size 32 would fit my car