New LT Headers for LT1 and LT4?
Thread Starter
Safety Car
Joined: Dec 2008
Posts: 3,588
Likes: 10
From: North New Jersey
New LT Headers for LT1 and LT4?
Ok, while looking for Corvette stuff on ebay I found this:
http://cgi.ebay.com/ebaymotors/OBX-E...#ht_3195wt_939
Here is what they say:
Specification.
Primary Port Diameter: 1.5/8"
2.50" off road lead pipes
100% T304 Stainless Steel..
Runner Wall Thickness: 16 Gauge(1.5mm)
Item Description:
OBX Genuine Products Design and Quality of OBX U.S.A.
Great Fitment, Great Quality And Great Price Guaranteed.
What do you guys think... Obviously its not as good as ARH's headers but its half the price so it caught my attention...
http://cgi.ebay.com/ebaymotors/OBX-E...#ht_3195wt_939
Here is what they say:
Specification.
Primary Port Diameter: 1.5/8"
2.50" off road lead pipes
100% T304 Stainless Steel..
Runner Wall Thickness: 16 Gauge(1.5mm)
Item Description:
OBX Genuine Products Design and Quality of OBX U.S.A.
Great Fitment, Great Quality And Great Price Guaranteed.
What do you guys think... Obviously its not as good as ARH's headers but its half the price so it caught my attention...
Team Owner
Joined: Aug 2005
Posts: 34,988
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From: Riverside County Southern California
Co-winner 2020 C4 of the Year - Modified
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Melting Slicks
Joined: Dec 2008
Posts: 2,772
Likes: 64
From: Mystic CT
I thought the LT4 had exhaust ports like a Fastburn heads in that they are D shaped and the port is raised about 1/4 inch. These and almost all the others I have seen are round and the bolts on center to the ports and not raised. I had read as well that the Fastburn heads need special flanges but according to GM they use LT1 and LT4 port size and bolt location yet every pic I have seen of LTX headers they are on center too what gives there? I do know Hookers will not correctly fit Fastburn heads so assume the fit is marginal at best on a LT1 or LT4. The upside other than price I see on these is the 1 5/8 primaries make sense for a 400 HP engine.
Dave
Dave
Le Mans Master
Joined: Apr 2005
Posts: 6,413
Likes: 9
From: The Old Dominion
It seems like they've really expanded their lineup recently. I've been reading threads about their new CTS-V headers, LT5 headers, and now these.
Thread Starter
Safety Car
Joined: Dec 2008
Posts: 3,588
Likes: 10
From: North New Jersey
Good points everyone! They obviously wont be as good as the ARHs but for the price I was very surprised! The ports looked wrong but I was surprised they are stainless steel!
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Melting Slicks
Joined: Dec 2008
Posts: 2,772
Likes: 64
From: Mystic CT
For a true dual exhaust the would be a real buy if they fit the chassis correctly. I wonder if someone pointed out the flange difference they would make that change then a super bargin.
Dave
Dave
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
I thought the LT4 had exhaust ports like a Fastburn heads in that they are D shaped and the port is raised about 1/4 inch. These and almost all the others I have seen are round and the bolts on center to the ports and not raised. I had read as well that the Fastburn heads need special flanges but according to GM they use LT1 and LT4 port size and bolt location yet every pic I have seen of LTX headers they are on center too what gives there? I do know Hookers will not correctly fit Fastburn heads so assume the fit is marginal at best on a LT1 or LT4. The upside other than price I see on these is the 1 5/8 primaries make sense for a 400 HP engine.
Dave
Dave
I went through the same thing. I had Hedaman Elite Headers 1 5/8, Magnaflow stainless cat and Magnaflow stainless cat back. When I put on my GMPP Fast Burn heads The 1 5/8 headers covered the top 1/4' or so of the ports. I sold it all and am going with Stock LT1 exhaust for now.
http://forums.corvetteforum.com/c4-t...post1575063293
Le Mans Master
Joined: Dec 2002
Posts: 5,270
Likes: 3
From: Seattle Area WA
I thought this came up a while ago, maybe a different make, but similar design. Someone said they bought them and would report back but I think the general though was that they look awfully similar to F-body headers.
Only one way to find out.
As for the EM headers, we should do a survey...
I'll start a thread.
http://forums.corvetteforum.com/c4-t...olding-up.html
Only one way to find out.
As for the EM headers, we should do a survey...
I'll start a thread.
http://forums.corvetteforum.com/c4-t...olding-up.html
Last edited by USAsOnlyWay; Dec 20, 2010 at 02:33 PM.
