Hello can someone help me with this project. I have a J35A4 that I want to put in my 01 cl s. I was told that I either need 05 RL pistons or cls pistons. I have cls pistons but how are 3.2 pistons gonna work in a 3.5? Is there machine work to be done to the block or can they fit without work. And will my factory brain ecm work with this swap? Any help is thankful.

 

Look at this thread:

https://acurazine.com/forums/2g-cl-frequently-asked-questions-52/3-5-liter-hybrid-build-information-714305/