first what are the differences between 98-99 headers and 00-02 f-body headers?
and if im putting the lq9 in my car would i need to go with ls2 style headers?
thanks for any info.

 

The different years have different EGR and A.I.R. provisions. You will not need different headers.

 

so i can use 98-99 without any problems since i'm deleting the egr and all the emissions stuff anyway?

 

Sure can. Best thing to do would be to just get headers without the emissions fittings though.

 

thanks

 

A couple of side notes with the LQ9 swap just in case you aren't aware of them:

-The TB coolant lines are different than the LS1. You will have to buy about 6 inches of rubber hose and slightly (and GENTLY) tweak the metal coolant line to clear the intake.

-I had problems getting the truck coils to clear the small evap thingy on the fuel rail (correct me if that isn't what its called lol)

-The oil filler neck that was on the trucks is too tall and you will need one from an F-Body.

-The oil pressure sending unit that comes on the truck engines is a 3 wire and not a 1 wire like the LS1's so you will need one off of an LS1.

-The alternator bracket will only be held in by 2 bolts unless you tap the other one. I did not, and I haven't had any problems.

-You may want to use the pulley off of the truck power steering pump. It is metal unlike the cheap plastic that the F-bodies use and it is the same size, just more durable and you don't have to worry about it cracking when you hammer it on the pump.

-Make sure you keep all of your accesories and brackets as I don't think the truck ones will work without modification. Also, you will need the crankshaft pulley off of the LS1 since the truck pulley won't line up with the rest of the accesories.

Some of the above may not apply to you but for me they did since I bought a complete LQ9 from intake to pan. Good luck with the swap and if you start to get pissed/frustrated, stop and take a break. Trust me, it helps A LOT!

 

Just the info I was looking for. What about the knock sensors? Will those just be a straight connection?
Thanks
Alex

 

Yeah, the knock sensors are the same. If you have any questions while you are doing the swap, feel free to PM me.

To add to the above list, obviously you will need the LS1/LS6/FAST intake and not the truck one since it is too tall. Also, you'll need the F-body oil pan due to clearance issues with the truck pan as well.

Let me mention one more thing. MAKE SURE YOU REMEMBER WHERE ALL THE GROUNDS GO!!!! I forgot where a few of them went, and I put 2 where they shouldn't have went and the car wouldn't start. It really frustrated me since I spent about 2 weeks on the swap and had something so small to keep me from completing it.

 

Great, thanks for the extra info 99z. Good luck with your swap Josh93z.