2004-2007 Cadillac CTS-V Performance Mods Discussion, Headers in Cadillac CTS-V Series Forum - 2004 - 2007; Ok, I've read through Big Jim's entire Header Install and still have some questions. I got B&B headers on the ...
Ok, I've read through Big Jim's entire Header Install and still have some questions. I got B&B headers on the way (bought the ones on classifieds) and ordered UUC MM's from Luke to change while I'm down there. Got some questions....
1) Has anyone used wrap on their headers?
The ones I bought are wrapped. Should I pull the tape off or leave it on? If I pull the tape off will they look like shit? Do headers make engine temps rise that much?
2) What sparkplugs should I use if I change em out?
3) Should I use the stock manifold gaskets already on the engine, or get new OEM gaskets?
4) Should I get new metal gaskets in between the headers and my B&B catback..or will the ones I'm using now be ok to reuse?
5) Studs or Original Bolts? <- seems to be a mixed bag on this one
1) I wrapped my header collectors to dampen some of the ticking noise from the valvetrain. If your headers are already wrapped and the wrap looks like it is still in good shape leave it.
2) Stock plugs are good for anything but FI or Nitrous. You should take them out for the header install so you will be able to get a good look at if they are still ok or not.
3) Stock manifold gaskets are good. I used the Percy's Seal-4-Good gaskets and have no leaks on mine, but Lindsay is using the stock ones on their installs with no leaks.
4) Whether you use the OEM or the Percy's definitely get new gaskets. It is work the $20 for the peace of mind.
5) Stock manifold bolts are completely up to the task. Put a little blue loc-tite on them and reuse them. If you want to make the job a little easier or think you will install/remove your headers often get a set of ARP Header studs.
Hopefully that will get you started on your journey. Now post those baseline numbers!!!
Blue loctite, OE gaskets, and 18 lb. ft. of torque has kept all the ones I have done quiet. OE bolts are okay but I usually use the ones that come in the Kooks kits since they are new and clean. The OE ones are rusty looking and have loctite on them that has to be cleaned off.
Studs might make the install easier, that would be personal choice. It can be tricky to line up the gaskets, hold the headers in place and get the bolts started.
If they are taped I'd leave it.
I wouldn't mess with the plugs either until you get close to 100k, the platinums are good and many aftermarkets don't burn well in GM engines, the heat ranges rarely ever match up right and you get weak flame fronts.
Did any of you have to remove the starter in order to install the headers?
I think I'll go with the bolts (save $ over the studs) and since they're wrapped they won't be that pretty to look at anyways lol. I can have a buddy hold em from underneath and I can line up the bolts/gaskets.
Heavy: my gaskets from manifolds to catback are copper, but I've taken the exhaust off a couple times. Think I should contact B&B and get new ones?
Skull: my base numbers (with CAI and catback were 324hp/317tq) never got it dyno'd all stock.
Ya I guess we'll see if Brent hooks up the good tune or not! I'll be doing the UUC MM's at the same time, so it'll feel like a new car! Woooo!
Headers got here today, but MM's don't arrive til Monday <- f'n boooo.....so it looks like next weekend it's on.