C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Installing Headers this Weekend

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Old Mar 25, 2005 | 07:00 PM
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Default Installing Headers this Weekend

Just got the car up on the kwilift and am about to start removing the exhaust and putting on some EM LT headers. Any tips for the install to go smoothly? What should I move out of the way to get to the manifold bolts... Im having trouble getting them out they dont want to budge


Im taking pics along the way, hopefully I'll be able to post them in a few days.
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Old Mar 25, 2005 | 08:32 PM
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lots of beer. i had mine done i wasn't as lucky as you to have a lift.
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Old Mar 25, 2005 | 08:42 PM
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My install should be starting in the next week or two. Did you get your LT's on the GP that's running now? If so, it means I should be getting mine too!!!
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Old Mar 25, 2005 | 09:05 PM
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Did you buy the connections and cats to hook up to your catback? If so, I want to see those pictures.
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Old Mar 26, 2005 | 12:10 AM
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I let some PB Blaster work on the manifold bolts and made them a piece of cake to take out.. only problem is I dont see how to get to the back two bolts on the passenger side, any suggestions?
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Old Mar 26, 2005 | 02:56 AM
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Originally Posted by JB666
My install should be starting in the next week or two. Did you get your LT's on the GP that's running now? If so, it means I should be getting mine too!!!
I bought these a few weeks before the GP started... they did ship them out fast after I ordered.
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Old Mar 26, 2005 | 03:02 AM
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The passenger sides can be done from below. But they should be fairly easy with a short socket and a swivel.
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Old Mar 26, 2005 | 03:37 AM
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We do want to see those pix. Nice color by the way.
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Old Mar 26, 2005 | 04:20 AM
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Originally Posted by steve40th
The passenger sides can be done from below. But they should be fairly easy with a short socket and a swivel.
I'll give the swivel a try... it looks like theres only about 3/4 of an inch between the bolt closest to the windshield on the passenger side and the panel next to it. I haven't started on the drivers side yet, did you have to remove the starter?

By the way I got to try out my new IR Thundergun, omg that thing is awesome... I was afraid I didnt have enough air with the 1.8 hp 28 gallon cambell hausfield but its working pretty good
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Old Apr 1, 2005 | 10:10 PM
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Is this the big weekend?
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Old Apr 2, 2005 | 12:12 PM
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Originally Posted by dan6712cc
I let some PB Blaster work on the manifold bolts and made them a piece of cake to take out.. only problem is I dont see how to get to the back two bolts on the passenger side, any suggestions?
When I recently helped a friend install his TPiS LT Headers, we found that using a 1/4" drive ratchet for the back 2 passenger side bolts let us get them tight. To get them started I used a box end wrench 1 size up from the bolt size. My box end wrenchs have the flares that prevent rounding off the bolt head, and using 1 size up let me easily "grab" the bolt to get it started (no room for fingers in there). Once it was started the 1/4" ratchet was small enough to finish the job.

HTH!
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Old Apr 2, 2005 | 12:31 PM
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Here is another tip for installing the EM headers. Use a set of ARP header bolts that has a 3/8" head on them. This will make it easier to use a socket on most of the bolts and where its tight and you have to use a open end wrench its also going to give you more clearance.

Also on the number 8 tube you will have to grind the flange of the bolt down to reduce the OD of the flange to clear the tube. Use square wire lock washers on all the bolts as well. This will keep them from coming loose.
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