BIG LT1 headers?
08-07-2005, 11:41 AM
#1
TECH Enthusiast
Thread Starter
iTrader: (2)
Join Date: Aug 2005
Location: Chicago
Posts: 674
Likes: 0
Received 0 Likes
on
0 Posts
BIG LT1 headers? Wat does everyone use for BIG headers? I'm gonna need like a 1 7/8 set. Does anyone make them? If so does anyone know where I can find them and wat PN everything is? I know Kooks makes a set but those are stepped. Does anyone make a true 1 7/8 headers?
08-07-2005, 01:22 PM
#4
TECH Enthusiast
Thread Starter
iTrader: (2)
Join Date: Aug 2005
Location: Chicago
Posts: 674
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by flyinZ
Yup..What makes you think you'll "need" a BIG set?
Umm the plans of goin 8.5's, heads that flow A TON, and VERY little street duty, so I was figuring go BIG or go home!
Trending Topics
08-07-2005, 06:26 PM
#8
TECH Enthusiast
Thread Starter
iTrader: (2)
Join Date: Aug 2005
Location: Chicago
Posts: 674
Likes: 0
Received 0 Likes
on
0 Posts
Ok I found the numbers for the big Hedman headers here they are incause anyone else was wondering
#63585 true 1 7/8" 3.5
#63586 1 3/4 stepped to 1 7/8 3.5
#63585 true 1 7/8" 3.5
#63586 1 3/4 stepped to 1 7/8 3.5
08-07-2005, 09:48 PM
#10
TECH Enthusiast
Thread Starter
iTrader: (2)
Join Date: Aug 2005
Location: Chicago
Posts: 674
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Birdie2000
Keep in mind you need bolt pattern adaptors for these to work.
08-08-2005, 08:01 AM
#12
TECH Enthusiast
Thread Starter
iTrader: (2)
Join Date: Aug 2005
Location: Chicago
Posts: 674
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Birdie2000
Lt1 
Y would I need a bolt pattern adaptor for those? aren't they just mad for an SBC car? which would be at LT1 anyways? and either way I'm dropping in a conventional SBC anyways
08-08-2005, 08:18 AM
#13
TECH Resident
iTrader: (15)
Join Date: Jun 2003
Location: Traverse City, MI
Posts: 787
Likes: 0
Received 0 Likes
on
0 Posts
Because the primaries are so big, the bolt spacing of the traditional bolt pattern will cause interferance with the tubes. They use a 18* bolt pattern and require an adaptor that may need to be ported to match the size of your header/port. You need something along these lines:
http://www.jegs.com/cgi-bin/ncommerc...09&prmenbr=361
http://www.jegs.com/cgi-bin/ncommerc...09&prmenbr=361
08-08-2005, 08:40 AM
#14
TECH Enthusiast
Thread Starter
iTrader: (2)
Join Date: Aug 2005
Location: Chicago
Posts: 674
Likes: 0
Received 0 Likes
on
0 Posts
Ok ok, so is this with ALL big tubed headers? or just the hedmans? Like if I went with a set of the Lemons headers would I have to do that also? Or should I just call Lemon and ask them?
08-08-2005, 08:43 AM
#15
TECH Resident
iTrader: (15)
Join Date: Jun 2003
Location: Traverse City, MI
Posts: 787
Likes: 0
Received 0 Likes
on
0 Posts
You most likely would, it's more of a restriction set by the primary size interfering with those bolts cause of necessary clearances to spin the bolt and such. I believe some heads like the big-port AFR's can be ordered with the other bolt pattern from the get-go, but I'm guessing you already have heads with the standard bolt pattern.
08-09-2005, 12:31 AM
#18
On The Tree
Join Date: Mar 2005
Location: Buffalo
Posts: 111
Likes: 0
Received 0 Likes
on
0 Posts
I am also interested in a bigger header then the conventional super comp hookers. I picked up a set of bowtie Vortec heads 215cc intake and 84cc exaust. The exaust runners are raised like a LT1 head, so wouldn't you need to modify the exaust flange to fit the heads or are the headers made for LT1 heads.
