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Shorty headers on LS1 Swap?

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Old Apr 19, 2007 | 03:39 PM
  #1  
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Car: '88 Formula
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Shorty headers on LS1 Swap?

Anyone tried this? Anyone know if they'll fit?

Simply put, I'm NOT paying $1000 for Hawks headers.

All input appreciated.

-Ian
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Old Apr 19, 2007 | 05:30 PM
  #2  
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Re: Shorty headers on LS1 Swap?

Welcome to the boards!

If you are refering to the "block huggers" then yes. However be prepared to spend the rest of the money making a custom Y-pipe.

Good luck dude.
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Old Apr 19, 2007 | 05:52 PM
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Re: Shorty headers on LS1 Swap?

Based on what I have read on other boards, the LS1 manifolds flow really well and there isn't much to be gained by going with shorty's. So, personally I would either keep the manifolds, or spend the money for the Hawk's long tubes.
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Old Apr 19, 2007 | 06:13 PM
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Re: Shorty headers on LS1 Swap?

Originally Posted by DanS
Based on what I have read on other boards, the LS1 manifolds flow really well and there isn't much to be gained by going with shorty's. So, personally I would either keep the manifolds, or spend the money for the Hawk's long tubes.
To contradict your theory, and I do not mean to disrespect you. an LS1 T56 car runs in the 13's a full exhaust system with long tube headers puts the car into the 12's.

Those exhaust manifolds are not high performance.
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Old Apr 19, 2007 | 07:44 PM
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Car: '88 Formula
Engine: '04 LQ4
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Re: Shorty headers on LS1 Swap?

Thanks for the responses guys.

For starters, whoever thought the craptastic y-pipe on my car was a good idea has no business touching an exhaust ever again. So building another y-pipe isn't a problem.

What is a problem, is spending $1000 on custom longtubes, when $1000 with my car would be MUCH better spent on a 12 bolt. I found a set of shorties VERY cheap, and if they'd work better than stock manifolds, I'd be all for it, IF THEY FIT. The car will have a TSP torquer V2 cam in it by the beginning of next month, and I know manifolds really hurt with a bigger cam. I'm looking for any option here really.....

As for "block huggers", I'm not sure what you mean there. If it helps, they're Hooker super comp shorties for a '98-02 F-body.

-Ian
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Old Apr 20, 2007 | 01:05 AM
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Re: Shorty headers on LS1 Swap?

Between hooker headers and a custom Y-pipe you are looking upwards in that price direction.
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Old Apr 20, 2007 | 05:13 PM
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Re: Shorty headers on LS1 Swap?

I still laugh when people tell me it's just as easy or just as cheap to put in an LSx motor as it is to use an SBC. hahah yea, right.
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Old Apr 22, 2007 | 03:19 PM
  #8  
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Re: Shorty headers on LS1 Swap?

Originally Posted by Sonix
I still laugh when people tell me it's just as easy or just as cheap to put in an LSx motor as it is to use an SBC. hahah yea, right.
Here's the difference: your car had BEST have one stout 355 to keep up with the stock motor that's in my car, let alone once it has The TSP Torquer V2 that's on it's way to me as we speak. So, I still laugh when people have street cars with carburetors who knock swapping a better motor into the car (yes, the LS1 is superior to any Gen I/Gen II SBC. Get over it).

There's a set of used shorties for $175 on LS1Tech. I can have a y-pipe made for under 200 bones, not to mention the fact that the car needed one anyways. Now, I'm no bright individual, but I'm not sure how that equates anywhere near $1000 for headers that MIGHT fit, and anything has to be better than.

So, will they (they meaning Hooker shorty super comps), or will they not, fit?
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Old Apr 23, 2007 | 03:21 PM
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Re: Shorty headers on LS1 Swap?

Originally Posted by Speed Kills
Here's the difference: your car had BEST have one stout 355 to keep up with the stock motor that's in my car, let alone once it has The TSP Torquer V2 that's on it's way to me as we speak. So, I still laugh when people have street cars with carburetors who knock swapping a better motor into the car (yes, the LS1 is superior to any Gen I/Gen II SBC. Get over it).

There's a set of used shorties for $175 on LS1Tech. I can have a y-pipe made for under 200 bones, not to mention the fact that the car needed one anyways. Now, I'm no bright individual, but I'm not sure how that equates anywhere near $1000 for headers that MIGHT fit, and anything has to be better than.

So, will they (they meaning Hooker shorty super comps), or will they not, fit?
Dude, it doesn't take much to get up to a stock LS1. You might want to deflate the ego a bit.

If you think you can get a Y-pipe done for shorties for $200 then be our guest. If you think you have all the answers then what was the purpose of the thread?

Goodluck on whatever it is you decide to do.
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Old Apr 23, 2007 | 05:23 PM
  #10  
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Re: Shorty headers on LS1 Swap?

Originally Posted by nelapse
Dude, it doesn't take much to get up to a stock LS1. You might want to deflate the ego a bit.

If you think you can get a Y-pipe done for shorties for $200 then be our guest. If you think you have all the answers then what was the purpose of the thread?

Goodluck on whatever it is you decide to do.

I'll deflate nothing, but thanks for the advice anyways. I don't THINK I can, I KNOW for a fact. If you'd like me to link me to the shorties on LS1Tech, I'd be more than happy to. And I'm cashing in on a favor to have the Y-pipe reworked. I didn't say every tom, ****, or harry off the street could do it for that price, I told you what I could do it for. Hence, why I asked if I could make it work.........

A Gen I/II SBC through a T10 is going to have to be stout to trap 110 MPH. Stout meaning a decent cam, a good flowing set of heads, and more than 9:1 compression, or a healthy shot of nitrous. My car with a STOCK MOTOR (through stock manifolds as well....) and 3.27 gears went 13.1 @ 110 on street tires. Now, a stock, .030 over 350 in a third gen is never going to do that. Period. It'll take some serious work, and a certain amount of money. And don't get me wrong, I've had cars with Gen I's before, and it's a fun, easy motor to get started with. BUT. You show me stock Gen I/II heads that flow 320CFM out of the box. See where my point arises? Gen III > Gen I/II.

As for this thread, I asked if the headers would work. I know what it costs to do things, and pretty sure my topic title didn't ask whether or not I should buy the Hawk's headers that fit 2/3 of the time, or what everyone thinks a shorty/y-pipe combo would cost. In fact, I asked whether or not the shorty super comp's would fit on an LS1 swapped car. Which I have yet to have an answer to.

Last edited by five7kid; Apr 23, 2007 at 08:04 PM. Reason: out of line comments
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Old Apr 23, 2007 | 08:05 PM
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Old Apr 23, 2007 | 08:41 PM
  #12  
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Re: Shorty headers on LS1 Swap?

I don't think that any 4th gen header will fit in a third gen because of the way the motor mounts up and will hit the crossmember, I know when I put my LT1 in my '87 even the stock manifolds wouldn't work so I opted for 3rd gen headers. It has to do with the passenger side and the limited amount of space for where it has to dump for a y-pipe to bolt up.

Now as for the Gen 1/2 SBC, you might want to take the Gen 2 out of that because they are only 20 less hp than the allmighty LS1 and mine would be running mid 8's in the 1/8th bone stock which would be around mid 13's in the 1/4. Unless you're talking about the Vortec motors and not the LT1's which are usually called Gen 2 motors since they were totally different where a Vortec just had different heads/intake.
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Old Apr 23, 2007 | 10:56 PM
  #13  
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Re: Shorty headers on LS1 Swap?

Originally Posted by Klortho
I don't think that any 4th gen header will fit in a third gen because of the way the motor mounts up and will hit the crossmember, I know when I put my LT1 in my '87 even the stock manifolds wouldn't work so I opted for 3rd gen headers. It has to do with the passenger side and the limited amount of space for where it has to dump for a y-pipe to bolt up.

Now as for the Gen 1/2 SBC, you might want to take the Gen 2 out of that because they are only 20 less hp than the allmighty LS1 and mine would be running mid 8's in the 1/8th bone stock which would be around mid 13's in the 1/4. Unless you're talking about the Vortec motors and not the LT1's which are usually called Gen 2 motors since they were totally different where a Vortec just had different heads/intake.
Thank god, a technically related post!

If I read right, Hooker shorties are supposed to bolt up to a stock y-pipe. That being the case, I don't see why they shouldn't work. even if they come out a little further to each side, I've still got the room I need. Looks like I'll be the guinea pig for once.

Funny thing you should mention the LT1 swap. There happened to be an Lt1/T56 third gen Camaro at the track the very same night I ran mine. With 3.73's and an 11" wheel on the back, it did manage a mid 13 second pass, at about 6MPH less trap speed than my car. This thing is no dragstrip king, I have a car for that, but comparing The LT1 to an LS1 is apples to oranges. Hell, my can ran damn near as fast and trapped the same as a cc306 cammed & geared 4th gen 6 speed car around my area. Basically, the Lt1 was an "in-between" motor that GM used until the LS1 was ready, and now we have cars that have basically the same motor still. So, I'll stick to my guns there.
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Old Apr 24, 2007 | 06:52 AM
  #14  
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From: Kingston, Tn
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Re: Shorty headers on LS1 Swap?

They will bolt up to the stock 4th gen y-pipe, which is different than a 3rd gen pipe. It's the clearance between the a-frame connector and motor that is cramped on the passenger side of the car.
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Old Apr 24, 2007 | 05:52 PM
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Re: Shorty headers on LS1 Swap?

When I was thinking of a LS1 I talked to a company here in Tennessee. They have a patten on LS1 swap headders for 1st gen camaros.He told me that headman was working on some for thirdgen cars $600-700. I don't know if there is any truth to it but thats what he told me.
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Old Apr 26, 2007 | 01:23 AM
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Re: Shorty headers on LS1 Swap?

My first post!! Anyways..as much as i understand from the question...you have a '88 formula and you put an ls1 engine in your car. First point - awesome move..i just finished refitting my ls6 engine in my 91 camaro...second point - I myself put shorty headers into my car, eddlebrock high flow shortys I got off ebay for about 300 u.s.. I replaced the stock headers off my engine with these and they were a pretty easy swap. The only problem I had with it was the passenger side motor mount was hitting the passenger side header. I just took an angle grinder to the mount and made some room. Works/fits great now and there's no real harm to the motor mount on the pass. side. I think shorty headers are a better choice for this paticular kind of engine swap just because using long tube headers might be more complicated in fitting the headers into the vehicle. But that's up to you. Hope this helps a little. Just some more info - I did the entire swap in my car (305 tbi/700r4 to a 350ls6/t56 tremec) by myself and help from my brother. So if you have any more questions about your swap, feel free to ask me..I'll try to help you as best as I can
Cheers and good luck
Jeff
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Old Apr 26, 2007 | 07:33 AM
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Re: Shorty headers on LS1 Swap?

Originally Posted by nelapse
To contradict your theory, and I do not mean to disrespect you. an LS1 T56 car runs in the 13's a full exhaust system with long tube headers puts the car into the 12's.

Those exhaust manifolds are not high performance.
The LS1 T56 car I got my stuff from Ran a 12.5, stock motor, stock exhaust, one week before it was totaled.
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Old Apr 26, 2007 | 07:40 AM
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Re: Shorty headers on LS1 Swap?

4th gen Long Tubes don't fit because they point outwards as they go down, and thats where our frame rails are. The Hawks one point more straight back, maybe a little inwards, thats why they fit.

People have dynoed Shorties vs 01+ manifolds and recieved no gains, so you might was well save your money if you are not willing to man up for the LTs....

That said, I was a little disappointed in the Hawks/Stainless headers. Granted they are the only real option, but still I expected them to fit a little better, and a larger collector would have been nice.

Do yourself a favor, if you EVER plan on getting long tubes, get the Drews Transmission X-Member, cause I went the spohn route and it really screws up your Y-pipe placement....meaning no ground clearence.
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