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Camaro V6 LLT Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 01-05-2009, 09:15 PM   #1
Xanthos
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Headers for the V6?

So, I was thinking about how to get headers onto a V6 camaro and I realized that holden has been using the HFV6 family (under the Alloytec name) for years and thought that there must be some headers available for some of their engines. And, since the entire family uses the same heads, they should bolt right up, except for possible clearance issues and issues with 02 sensors being different.

I found these.



They also have this set of shorty headers designed to leave the cats in the stock location (should be emissions legal as long as you leave/make provisions for the 02 sensors).

I wouldn't call it a sure bet, but it seems worthy of further research.
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Old 01-05-2009, 10:29 PM   #2
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Nice find! I'll be looking into these, as long as they fit of course.
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Old 01-05-2009, 10:44 PM   #3
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Yeah... I would definitely spring the money for those LTs and just move the stock cats back, but I don't know if they would fit.
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Old 01-05-2009, 10:48 PM   #4
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Hmm, still too soon to tell. Gonna have to look into this for the future of my camaro. Thanks xanthos..
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Old 01-05-2009, 11:36 PM   #5
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On another related note - their engine bay seems just as cramped as ours is, if not more so. Heres a picture of ours:



And one of theirs:



Makes me feel better about clearance issues.
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Old 01-05-2009, 11:43 PM   #6
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OH yes, the engine in that second pic is and engine that I will not like to work on. I think from the pictures that we should have plenty of space. I hope. At least in the V6.
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Old 01-06-2009, 12:02 AM   #7
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In the engine compartment we will, of that I'm sure. What I'm worried about is if it will clear the tranny crossmember, if we'll have room for cats after the headers but before the x-pipe (looking at some magnaflow spun-cats - they're compliant everywhere except california and would require no more than about a foot of space for both cats on each side), etc. etc.

And with that stuff, there's no real way to know till we get them up under the car.
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Old 01-06-2009, 12:07 AM   #8
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Yep, looks like were are just gonna have to wait.
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Old 01-06-2009, 12:07 AM   #9
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Or wing it. A lot of that stuff can be fabricated on the fly.
- Xanthos

P.S. - But the difference in emission systems might pose more of a problem.
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Old 01-06-2009, 09:45 AM   #10
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Would....a super-high resolution picture help any? It might provide a rough idea...

http://gm.wieck.com/forms/gm/previewpage?048183
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Old 01-06-2009, 12:55 PM   #11
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Yeah, that might shed some light on the issue. We also have several pics of the engine bay on here somewhere. I'm just scared to start looking.
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Old 01-06-2009, 03:30 PM   #12
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Looks like the header would fit without any clearance issues. It would not be emissions legal (but when is a long tube ever emissions legal) because we would have to move the first cat back to where the second cat is.
- Xanthos

P.S. - but what that DOES mean is that the shorty header should be emissions compliant.
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Old 01-06-2009, 06:54 PM   #13
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Quote:
Originally Posted by XanthosV6 View Post
On another related note - their engine bay seems just as cramped as ours is, if not more so. Heres a picture of ours:
Makes me feel better about clearance issues.
- Xanthos
just install them from below.... like most headers have to be.


one thing to check is the clearance for the steering shaft and all that as well as the actual body style of the cars you are comparing them to.

or if you are willing to wait a little after you get your camaro..... pull your exhaust off, mail it to me and I'll fab you up some stainless headers to replace your stock manifolds/cats.
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Old 01-06-2009, 07:30 PM   #14
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How long does that usually take / how much does it usually cost? I would love some long tubes if I could get them to be emissions compliant.
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Old 01-06-2009, 07:46 PM   #15
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Quote:
Originally Posted by XanthosV6 View Post
How long does that usually take / how much does it usually cost? I would love some long tubes if I could get them to be emissions compliant.
- Xanthos
you want your damn cake and to eat it too...
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Old 01-06-2009, 07:57 PM   #16
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Yep!
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Old 01-06-2009, 08:29 PM   #17
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Finally found a pic of the shorty headers. They're on Ebay for 325 us dollars (450 au dollars) for a set.



http://cgi.ebay.com.au/Holden-VE-V6-...1231134001r602

Looks like they'll definitely fit, assuming the head/flange bolt pattern IS the same (which it should be).
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Old 01-06-2009, 08:45 PM   #18
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Quote:
Originally Posted by XanthosV6 View Post
Looks like they'll definitely fit, assuming the head/flange bolt pattern IS the same (which it should be).
- Xanthos
if not, take it to an exhaust shop and get it matched up
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Old 01-06-2009, 09:00 PM   #19
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I was going to have them installed at my exhaust shop when they did the rest of my exhaust anyway.
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Old 01-14-2009, 03:25 PM   #20
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Did some research and the cost of getting the brand new painted headers ceramic coated is much cheaper than the difference in price between ordering the ceramic coated headers from pacemaker (750 or so) and the ebay price (325) - savings would be around 150 to 200 dollars after shipping. Not a bad deal - this is definitely the way I'll go when I get my headers. Plus they offer a satin aluminum finish instead of just the polished finish, which I would prefer for reasons of personal taste.

Anybody heard anything good or bad about the coating company? ThermalTech Coatings.
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Old 01-15-2009, 12:43 AM   #21
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I have not heard of them BUT I used Jet-Hot on my chevelle's long tubes, pretty happy with the service and results. Not a direct answer but a suggestion at the least

And on a side note, how do you know those will fit? does the older comodore VE engine have the same bolt pattern as the new LLT's heads? I don't think an exhaust shop would have header flanges for an LLT laying around if it doesn't line up. And what about emissions? This could all be BS spewing out of my mouth because I'm not all that knowledge worthy but it's what ran through my mind when reading through.
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Old 01-15-2009, 01:01 AM   #22
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I have not heard of them BUT I used Jet-Hot on my chevelle's long tubes, pretty happy with the service and results. Not a direct answer but a suggestion at the least

And on a side note, how do you know those will fit? does the older comodore VE engine have the same bolt pattern as the new LLT's heads? I don't think an exhaust shop would have header flanges for an LLT laying around if it doesn't line up. And what about emissions? This could all be BS spewing out of my mouth because I'm not all that knowledge worthy but it's what ran through my mind when reading through.
The "older commodore" isn't as old as you think. It uses the LY7, which is the exact same engine as the LLT but with PFI instead of direct injection. Should have the same bolt pattern - otherwise it'll just be a matter of drilling new bolt holes in the existing flange.

And it has provisions for all emissions components.

I'll look into Jet Hot. Do they offer different colors?
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Old 01-15-2009, 09:59 PM   #23
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Yessir, Color options We got the silver to go with the chrome under the hood, but you could get a color to match your engine cover! I'll probably look into it myself whenever I put together enough scratch to get my car.
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Old 01-16-2009, 06:58 PM   #24
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id have to see some of their painted headers after a few thousand miles before I bought any. they say they can withstand temps of 1600*F but ive seen hi-temp paint rated to 2500*F that flaked off headers.
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Old 01-17-2009, 12:02 AM   #25
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Well, I'd be getting the headers done in their sterling extreme coating. The reason I ask about the colors is because I'll be making a custom aluminum intake and I've been looking for a nice flat black thermal coating to keep charge temps down as they pass the radiator.
- Xanthos

P.S. -

@ ZeeTwentyFour

Is their header coating as easy to keep clean as they say it is? This might be a major bonus because I won't have much time for detailing my engine bay...
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