I was wondering if anyone has put these headers on their lt1 swap.I have a 89 formula with a 96 lt1 motor.Do I need a custom y pipe or will these headers not work.any help would be appreciated.I am pulling my hair out nothing in this swap has been easy.

 

The best headers I would suggest using are the Hedmans, d-port, angle plug headers. If you look do a search for Hedman in this subforum, you'll find part numbers. They also have a matching y-pipe as well.