GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

obx style headers

Thread Tools
 
Search this Thread
 
Old Oct 26, 2009 | 09:42 PM
  #31  
waterdog's Avatar
Staging Lane
 
Joined: Jan 2009
Posts: 84
Likes: 0
Default

Ive been thinking about getting these to. Talked to them today, there not obx, just look the same. They have 3/8 flange and said they are about 3mm thick?
Reply
Old Oct 27, 2009 | 03:16 PM
  #32  
rel3rd's Avatar
11 Second Club
iTrader: (42)
 
Joined: Nov 2005
Posts: 1,643
Likes: 4
From: Baltimore, MD.
Default

Originally Posted by 05ls2chevy
did you order the ones from ebay that are 280?? i wana know how good they fit
Trust me, I'll be posting whether it be good or bad.
...but hopefully it's good, lol.

I'll be sure to take plenty of pics before, after, and (time permitting) even during, the install.

UPS says they'll be here Friday. If so, I'll be swapping them on Saturday. I already have a tune loaded in the HPTuners waiting.
Reply
Old Oct 27, 2009 | 04:52 PM
  #33  
waterdog's Avatar
Staging Lane
 
Joined: Jan 2009
Posts: 84
Likes: 0
Default

Hope it goes well, if so im gonna get them too.
Reply
Old Oct 30, 2009 | 02:51 PM
  #34  
rel3rd's Avatar
11 Second Club
iTrader: (42)
 
Joined: Nov 2005
Posts: 1,643
Likes: 4
From: Baltimore, MD.
Default

Got the headers today. Thank GOD the headers and pipes didn't look anything like the box did, lol.

I do already see an issue that'll need to be dealt with...the driver's side header has one primary tube that comes up higher than the rest (see pic), and it looks like I'll surely have a plug wire to header clearance issue there. I have everything loaded up so I can do the swap tomorrow at work. I'll try to get progress pics, but if not, I'll at least get pics of anywhere there is a clearance issue, or anything like that.

I will also put any info, pics, opinions, etc. in my own thread sometime tomorrow...

I will say that out of the box they "look" great. All welds look real nice. Header flanges are 3/8" thick, which is nice. I did notice that the Y pipe thickness is a bit on the thin side. Hopefully, that doesn't bite me in the *** sometime later down the road...
Attached Thumbnails obx style headers-pa280002.jpg   obx style headers-pa280005.jpg   obx style headers-pa280007.jpg  
Reply
Old Oct 30, 2009 | 03:43 PM
  #35  
Phantom's Avatar
11 Second Club
15 Year Member
iTrader: (16)
 
Joined: Sep 2006
Posts: 5,694
Likes: 50
From: The 405
Default

that primary is normal...they copied the old dynatech style...OBX actually has headers out now that look like the new dynatechs...
Reply
Old Oct 30, 2009 | 03:54 PM
  #36  
hirdlej's Avatar
TECH Junkie
iTrader: (31)
 
Joined: Dec 2004
Posts: 3,471
Likes: 1
From: Minneapolis, MN
Default

Start soaking those manifold bolts tonight. The rust should free up for you by tomorrow
Reply
Old Oct 30, 2009 | 04:59 PM
  #37  
rel3rd's Avatar
11 Second Club
iTrader: (42)
 
Joined: Nov 2005
Posts: 1,643
Likes: 4
From: Baltimore, MD.
Default

Originally Posted by DozerDan
that primary is normal...they copied the old dynatech style...OBX actually has headers out now that look like the new dynatechs...
What is everyone doing for spark plug wire clearance on that cylinder?
Any idea?

Originally Posted by hirdlej
Start soaking those manifold bolts tonight. The rust should free up for you by tomorrow
lol...let's hope so.
I assume you mean the Y pipe to manifold bolts?
150psi + 1/2" Ingersol Rand impact gun = LOOSE....or snap.
I'm just worried mainly about getting the O2 sensors out. I forgot to get some this week, and couldn't find any locally this afternoon.
Reply
Old Oct 30, 2009 | 05:03 PM
  #38  
Phantom's Avatar
11 Second Club
15 Year Member
iTrader: (16)
 
Joined: Sep 2006
Posts: 5,694
Likes: 50
From: The 405
Default

Most are using a protector sleeve/boot thingy
Reply
Old Oct 30, 2009 | 05:14 PM
  #39  
BarryW.'s Avatar
Teching In
 
Joined: Oct 2009
Posts: 14
Likes: 0
Default

Are those 1 5/8 primary tubes?
Reply
Old Oct 30, 2009 | 05:19 PM
  #40  
rel3rd's Avatar
11 Second Club
iTrader: (42)
 
Joined: Nov 2005
Posts: 1,643
Likes: 4
From: Baltimore, MD.
Default

Originally Posted by DozerDan
Most are using a protector sleeve/boot thingy
Crap. I better grab a handful of old plug wires for the drive home, lol...

Originally Posted by BarryW.
Are those 1 5/8 primary tubes?
No sir.
They are 1.75" primary tubes with 2.5" collectors. The Y pipe also has 2.5" pipe back to the merge, which is just in front of the catback flange. After that merge point, it's 3".
Reply



All times are GMT -5. The time now is 10:10 AM.