As the title reads...i am looking for an Impala SS or Monte Carlo SS engine wiring harness. Thank you.

 

you looking for the L67 or N/A harness

 

The l67 engine harness for my l67 engine swap

 

i think the grand prix gtp works too.

 

Does it? Is there a way to be sure? I was told to only use one from a l67 impala or monte carlo 2004-2005.

 

i would think they are same cuz the 04-05 impala/monte used the same L67 motor as the 97-03 grand prix. maybe somebody will chime in cuz i'm not 100% on this.

 

i would call a local gm and ask them, just ask what the difference between the gtp and monte wiring harness is, they should be able to tell you if there is one. i wouldnt think so tho being the same engine, but not 100% sure either

 

from what i was told you don't need L67 harness your N/A 3800 harness should work. the only thing you will need to modified are the injector clip from the L67 and other harness that the L67 have and the N/a don't

 

I was told from Morad on my 2002 that I would need a new one because of the MAP and boost bypass. I thought I also read someplace though that the N/A one works too so lol?

EDIT---The L67 harness will work if you have the L67 injectors and L67 MAP and boost bypass. So in short the harness from and L67 should work. I might not be right but if anyone else knows chime in.

 

http://zzperformance.com/grand_prix/...=173&catid=108

That with your L36 harness should work.