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upper intake plenum-90-92 tpi

 
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MrMike98
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Joined: 18 May 2010
Posts: 231
Location: Bremerton


PostPosted: Thu Jul 04, 2013 5:51 pm    Post subject: upper intake plenum-90-92 tpi Reply with quote

need late model plenum. want to do some porting practice....

thanks
Mike
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Xophertony
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Joined: 13 Oct 2005
Posts: 5304
Location: Portland, Oregon.

1988 Pontiac GTA

PostPosted: Wed Jul 10, 2013 2:53 pm    Post subject: Reply with quote

I have a good looking plenum i could part with, how can I tell what year range it is from?
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aaron_sK
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Joined: 23 Jan 2006
Posts: 8834
Location: Back in beautiful Tacompton

1987 Chevrolet Camaro IROC-Z

PostPosted: Wed Jul 10, 2013 5:31 pm    Post subject: Reply with quote

Assuming we're talking about the upper plenum here: there are several ways, but the quickest is to look for the triangular hole in between and below the front throttle ports. The later cars did not have one.

*Edit: These pictures are poor, but you get the idea:

http://www.hotrodlane.cc/Streetstories/choosingtpi2.htm
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Xophertony
Rodeo Queen


Joined: 13 Oct 2005
Posts: 5304
Location: Portland, Oregon.

1988 Pontiac GTA

PostPosted: Wed Jul 10, 2013 10:02 pm    Post subject: Reply with quote

its the later kind. I think i pulled it of an 89. interested?
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Alphius
Peanut


Joined: 05 Sep 2006
Posts: 2429
Location: Grand Mound

1984 Chevrolet Camaro Z/28

PostPosted: Thu Jul 11, 2013 10:04 am    Post subject: Reply with quote

Also, the '89 is considered later style due to the throttle body changes starting in '89 but won't have the MAP sensor port which 90-92 do.
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84 Camaro Z28 - LS1/T56
85 Silverado - Low and Slow
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