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Speed Engineering 99-06 1 3/4" GM truck header fitment

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Old Aug 5, 2015 | 10:20 AM
  #11  
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Yes, our 25-1016 headers are a direct replacement.

Thank you
Sean
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Old Aug 7, 2015 | 09:25 AM
  #12  
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I stand corrected, my buddy's VMax has your 1 7/8" headers, not the 1 3/4 as I thought.
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Old Aug 7, 2015 | 10:24 AM
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I run the 1 7/8 headers from the first batch. It is very close to the frame rail on the passenger side on my 1999. Other than that they fit great, I guess I should have waited to get the second batch.
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Old Aug 7, 2015 | 03:46 PM
  #14  
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Sounds good. Ya, we have been out of stock for a few months on the 1 7/8" headers now. Definitely, didn't expect the change to take that much longer. Thanks again for your guys business..

Sean
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Old Aug 26, 2015 | 11:44 PM
  #15  
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I'm going to look into the cam..
Do you the specs..
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Old Dec 22, 2015 | 11:44 AM
  #16  
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Ok i have a partial update finally. doing my head and cam swap these last few days and I went ahead and replaced the motor mounts. The driver side was starting to tear and the passenger side was completely destroyed and missing one of the rubber pieces - probably almost an inch of rubber. To say the least - I think the headers will clear the frame now. I was wrong when i said that my mounts appeared to be fine. I guess I did not know what to look for or test it thoroughly. I was clearly in the wrong. When I get the headers reinstalled I will post some final pics of the header fitment before and after the new motor mounts.

_Zblee
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Old Dec 24, 2015 | 05:26 PM
  #17  
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before new motor mounts (old ones were bad)





after new motor mounts!





also there is better clearance from the transmission pan and transmission crossmember support bar. (will post up pics soon)

_zblee
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Old Dec 24, 2015 | 07:30 PM
  #18  
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Ouch that pooor primAry!

Bad zblee, bad... No treats for you...





Sell those and get new set, coat and wrap them, now that you know they fit.
Wonder if there is anyway to repair them.
Maybe seal them up, heat that area of the peimary, heat it up and pressurize the pipe.. Maybe it will push the dent out..
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Old Dec 24, 2015 | 08:32 PM
  #19  
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I've heard that dry ice works.
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Old Dec 27, 2015 | 11:17 PM
  #20  
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Originally Posted by ezdaar
Ouch that pooor primAry!

Bad zblee, bad... No treats for you...





Sell those and get new set, coat and wrap them, now that you know they fit.
Wonder if there is anyway to repair them.
Maybe seal them up, heat that area of the peimary, heat it up and pressurize the pipe.. Maybe it will push the dent out..
i know i know. i should have just replaced the motor mounts in the first place... at some point ill get a new set of headers but for now i am just going to run the ones i have .

_Zblee
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