LTs install w/ pics (not DIY) - Pontiac GTO Forum
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post #1 of 12 (permalink) Old 06-25-2012, 02:03 PM Thread Starter
 
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LTs install w/ pics (not DIY)

Here's some pics to help people get a better idea of what is all involved with a long tube headers install.
Here is the stock pipes. Taking this all out is relatively easy. I had 3 broken studs on the block which all zipped out easily w/ an extractor. (The engine was still quite hot when we did this)

The new headers.

There was 3 things we 'undid' to fit the headers from the top. First was the ABS system since it was the easy side.

Next was the driver side engine mount which we raised approximately 4-5 inches.

And of course the steering rack and drive line which has to be done since the drive line goes through the long tubes. (I do have to get an alignment so be prepared for that)

Here is two shots of the flowmaster 50s I'm using to keep it some what tame.


And heres a quick under the hood after it was finished. It's filthy from workin on it so try to ignore that haha.

It took my friend and I about 2-2 1/2 hours to do this. Two people makes it much easier and quicker, especially tasks like lining up the steering properly. I snapped my coolant temp sensor in half and cracked 2 plugs as well getting the headers in. They only took minutes to fix but it's an extra 30-40 bucks I didn't have to spend if I was careful. Enjoy!

06' GTO PBM M6
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post #2 of 12 (permalink) Old 06-25-2012, 04:20 PM
 
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glad you got the bolts out. The instructions say to do this job with the engine cold so that you dont break bolts or worse strip the holes in the head and of course take out the plugs. I have to wait for my 02 extenders and I will be doing this too. How does it run any noticeable gains-----Danfigg
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post #3 of 12 (permalink) Old 06-25-2012, 07:41 PM
 
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do you think the driver side header would fit with out dropping the rack since you lifted the motor---danfigg
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post #4 of 12 (permalink) Old 06-26-2012, 03:59 AM Thread Starter
 
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I believe in the placebo effect so I won't say I feel gains. It's not tuned yet so there really might not be any. As for the broken bolts, my friend helping me did it before on a goat that had a couple broken bolts removed on a cold engine so we tried mine hot. No science to it. I would follow the manufacturer's instructions for sure cause they probably know better than my 1 experience. (I probably would have waited if I read the instructions haha) Car runs good and still pulls with no hiccups. I couldn't tell ya as far as the steering rack. Best way to do it is start putting it in and when it hits something, just move it out the way. I'd also recommend reusing the oem metal gaskets and not the paper ones they might send w/ the headers. Whatever they send gasket wise for the mids is fine.

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post #5 of 12 (permalink) Old 06-26-2012, 08:34 AM
 
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You might as well have replaced the engine mounts since you were half way there. Did you un-mount the ABS and raise the engine purely to put the LTs in from the top?

Those look like Pacesetters. Good luck

Current: MGW-p, H-pipe, SS OTRCAI, Lovell rear springs, Eliminator shocks and Pioneer AVH-P3300BT, JBA LTs+catless mids, Drilled/Slotted rotors, Kooks Afterburners, catch can & Tune Next: ??? Wish list: Intake & TB, modest cam, UDP, gears
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post #6 of 12 (permalink) Old 06-26-2012, 11:49 AM Thread Starter
 
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Originally Posted by BWinc View Post
Did you un-mount the ABS and raise the engine purely to put the LTs in from the top?
Yes. I don't think it's possible to get them in from the bottom. Especially the driver side.

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post #7 of 12 (permalink) Old 06-26-2012, 12:01 PM
 
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Should be able to. Though I've heard PSs sometimes are a bitch.

Current: MGW-p, H-pipe, SS OTRCAI, Lovell rear springs, Eliminator shocks and Pioneer AVH-P3300BT, JBA LTs+catless mids, Drilled/Slotted rotors, Kooks Afterburners, catch can & Tune Next: ??? Wish list: Intake & TB, modest cam, UDP, gears
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post #8 of 12 (permalink) Old 06-26-2012, 11:48 PM
 
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I installed my Pacesetters LT's from the bottom, no issues, move steering rack and firewall braces in they go. I did not need an alignment as well. I also installed poly motor mounts. It was a great winter project, so I had plenty of time to finish. I had a Supercharger installed shortly after LT's, but I could definitely feel a performance gain over the JBA shorties I had previously. Car is now at 526RWHP tuned and sound is awesome. I used SEC copper gaskets in install, no leaks. Definitely get your car tuned, you will feel the difference immediately.
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post #9 of 12 (permalink) Old 06-27-2012, 02:04 AM Thread Starter
 
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I'm putting my cam in in a few weeks and then it'll be tuned. I spent most of my budget on the drive train and rear suspension this year. I'm hoping to get close to 400rwhp w/ a vararam, lt headers, and a cam. Next year, I'd love to hit numbers like yours haha!

About the alignment, I don't want anyone to think they'll need one. We lined it up and it pulls slightly to the right so it's more of a possibility than a sure thing.

Also, I can smell gas in the exhaust quite potently. Is this just from it being catless and without a tune?

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post #10 of 12 (permalink) Old 06-27-2012, 10:45 AM
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Garage
The directions say to pull your spark plugs so you won't break them. The passenger side you can usually just drop in from the top without moving anything. It did on the last '06 I helped on with Kooks LTs.

2004 Blk/Rd M6
6.3 litre LS1

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