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

Header install:Do I really need these brackets?

Old Feb 14, 2006 | 08:47 PM
  #41  
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Here's what i did with my brackets

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Old Feb 15, 2006 | 01:43 AM
  #42  
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So you welded the 2 brackets together and then bent the south end of the one so that you could bolt it right to the flange?

Oh, I didn't notice at first, you took the 3 rd bracket (the one the rest of us discarded and bent that one also so it could be bolted directly to the flange? Pretty
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Old Feb 15, 2006 | 07:49 AM
  #43  
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Alt. bracket... I cut it in half and bent the flanges to work within the space available. Tacked them, unbolted, welded and painted.

AC bracket... Because the compressor can slide in from the front, I decided to once again bend the flanges to work on the inner bracket. Then I took the outer bracket, cut off the end flange and welded it to the inner bracket.
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Old Feb 15, 2006 | 08:11 AM
  #44  
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sonomacrew01,
On the Alt bracket I was also goint to cut it but I was thinking I would have to add about 1/2 on to it. Did you have to add anything or just cut it and reweld it at the proper angle? My thought was to get a pipe the correct diamiter and cut the bracket and use the pipe to make up the differnce. Why did you cut the A/C barcket, so you could bolt it straight to the flange? After reading several of these post I was able to get the other two brackets to fit with the OEM stud and a 1 1/16" spacer. BTW Great post
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Old Feb 15, 2006 | 12:12 PM
  #45  
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my problem was tht the oem stud would not fit because the header tube behind the #3 bolt was in the way. Same thing for #1. For the Alt. bracket, I did cut it around the top of the valve cover. I don't remember how short it was but I was able to get enough to tack weld, remove and fully weld it. I had 2 AC brackets. One I just bent the tabs tomakeit attach to the #3 bolt (had to grind away at some of the tab tomake it fit. I then mounted the AC compressor. The third bracket comes from the lower right mounting bolt and bolts tothe same location on the header flange. I just cut the tab off and bent it to the point where it would come in contact with the other bracet.

I will get some more pictures up tonight
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Old Feb 15, 2006 | 12:26 PM
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What brand of LT's are you running? Withthe Stainless works the #3 tube will allow the stud but like yours the #1 tube wont allow a stud.
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Old Apr 10, 2006 | 09:34 AM
  #47  
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has anyone with a 93 lt1 had any of these problems? I'm looking at getting a set of headers soon.
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Old Apr 10, 2006 | 10:33 AM
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mine's a 93. The only thing I don't like are the spacers they give. They buckle under 30 ft. lbs.
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Old Apr 10, 2006 | 11:03 AM
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I haven't done anything with it but I bought a valve guide with the
idea of making spacers from this.

Conventionally available tubing does not have sufficient strength.
Without enough clamping force, gaskets will blow out, bolts may loosen,
flanges may warp and so on.

It would be wise to test the load-bearing capacity of the valve guide
material before I shape it. If it works, this is a way to avoid machining
a spacer for those of us with no access to a lathe.

.
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Old Jun 27, 2006 | 03:48 PM
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for those of you with SW headers, how did you get the lower AC brkt to mount without bending the #3 header? my installer says it is not made right.
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Old Jun 27, 2006 | 06:30 PM
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Here is how I did mine. A little easier to see with the ASR out of the way. Grinding was involved as stated in the instructions. 2 of the 3 brackets are being used now.

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Old Jun 28, 2006 | 04:48 PM
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The problem with my headers was the #3 header was made poorly. The pipe should have been curved more towards #5, so that we could get the bolt in. Ended up having to heat the pipe, & put a flat spot on it to get the bolt in. Called SW & no reply.

will post pics when finished

Last edited by Red_Vette_93; Jun 28, 2006 at 04:52 PM.
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Old Jun 28, 2006 | 05:00 PM
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Sorry about hi-jacking this thread, but can anyone tell me how well Hooker Super Comps fit, and are there specific problems with them as to mounting the AC and other accessories that need to be overcome as well? Thanks in advance to any help. The SW problems seem a bit much to me for what they cost. BTW, my car is an 89 w/the stock L98.

Rich K
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Old Jun 28, 2006 | 06:36 PM
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The AC bracket on an 89 should go back on fine, but the alternator bracket wont.

You have to figure something out for that one, or you will eventually crack the alternator
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