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Need help with identifying manifolds and tensioner

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Old 07-31-2004, 12:08 PM
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Default Manifolds identified. Need tensioner id.

I have attached some pictures of a set of manifolds that were on my '01 vette ls1 when I got it. Also, I have a couple of tensioners that were not on the engine but I need help identifying them. There are no numbers on the stainless manifolds so they may be custom. There is a part # on the tensioner (12580162). There are actually 2 different tensioners but they have the same bolt pattern and one is a gates and the other maybe a GM.

Thanks in advance for your help.

Last edited by 55chevy; 08-03-2004 at 10:51 PM.
Old 08-01-2004, 09:00 AM
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ttt.... help wanted.
Old 08-01-2004, 06:06 PM
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Was the vette new? Those look like 97-99 sheetmetal "headers" not the manifolds that came on all vette 00 & up.
Old 08-01-2004, 06:34 PM
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Originally Posted by WILWAXU
Was the vette new? Those look like 97-99 sheetmetal "headers" not the manifolds that came on all vette 00 & up.
Agreed. They look like the junk I took of my 98 Camaro...just slightly different shape, and no EGR port.
Old 08-03-2004, 10:49 PM
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Originally Posted by WILWAXU
Was the vette new? Those look like 97-99 sheetmetal "headers" not the manifolds that came on all vette 00 & up.
THANKS, I believe you are correct, there is a pair just like them listed on ebay as 99 vette headers. Another conversion guy had my engine preparing it for 70s model vette.

I still would like some help with the last 2 images of the tensioners. Part number (12580162).




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