TPI plenums

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Mar 6, 2006 | 01:07 AM

'Shifter

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From: Tucson, Arizona

Car: 87 Z-28

Engine: A worn-out 305

Transmission: T-5, until it dies

TPI plenums

Does anyone know what years the plenums are exactly the same
as a 87 Z-28? I'd like to get one to ship out to be ported, but
don't want my daily driver down.....

Mar 6, 2006 | 02:34 AM

JDubya18

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Joined: Nov 2004

Posts: 362

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From: Minnesota

Car: 86 Camaro IROC-Z

Engine: 305 LB9

Transmission: 700R4

Axle/Gears: 3.23

The plenums from 85-88 are all the same and then switched to SD from 90-92 I believe. Not exactly sure on the 89 plenum, I think the only difference is that it doesnt have the 9th injector.

heres a pic from an older thread

heres the thread https://www.thirdgen.org/techbb2/sho...ht=tpi+plenums

Last edited by JDubya18; Mar 6, 2006 at 02:38 AM.

Mar 9, 2006 | 12:43 PM

Skidmarks

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Joined: Feb 2006

Posts: 14

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From: Central Illinois

Car: 1988 Corvette Coupe

Engine: L98

Transmission: 700R4

Axle/Gears: 2.59:1 IRS

http://www.hotrodlane.cc/Streetstories/choosingtpi2.htm

Mar 10, 2006 | 01:08 PM

tenpin842

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Joined: Jan 2006

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From: Michigan

Car: 1987 Trans Am

Engine: 5.0L TPI

Transmission: 700R4

Axle/Gears: Richmond 3.73

thx for that post. I bought a ported plenum and the auction said 82-92......I looked and it matches my year.
Thanks alot. Thats a huge load off my mind!!

Mar 10, 2006 | 06:59 PM

87zjeff

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From: louisville, ky

Axle/Gears: '01 3.42 10 bolt

Quote:

Originally posted by tenpin842
thx for that post. I bought a ported plenum and the auction said 82-92......I looked and it matches my year.
Thanks alot. Thats a huge load off my mind!!

auction said '82-'92???????? they didn't do the tpi till '85. how could it have been in '82?