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Will LT1 Injectors work with the fuel rails on a stock TPI setup??

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Old Apr 19, 2001 | 02:12 PM
  #1  
86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
Will LT1 Injectors work with the fuel rails on a stock TPI setup??

I have a 305 right now with 19# injectors and I'm upgrading to a 355 and looking for a used set of LT1 injectors to use! Will the LT1 injectors work with the fuel rails on my '86 TPI setup?? They're stock GM fuel rails!!
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Old Apr 19, 2001 | 03:26 PM
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Kevin G's Avatar
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From: md.
Yes they should, unless an 86 fuel rail is all that different from a 91 TPI. I used LT1 injectors on my 383 in my 91 GTA for awhile. They can work with the stock ECM no problems.
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Old Apr 19, 2001 | 04:51 PM
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86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
thanks....didn't know for sure!! Now the only problem is finding a used set cheap! We have two salvage yards in this town and neither of them have a set!!
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Old Apr 19, 2001 | 05:34 PM
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From: San Diego, CA
Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
Try the classifieds over at camaroz28.com
I picked up a set of LT1 24# injectors for $40, and another $80 will get them cleaned and flow matched.

------------------
1989 IROC-Z, ZZ3 shortblock with some bolt-ons.
13.20 @ 108.69, 2.2 60'
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Old Apr 19, 2001 | 07:36 PM
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86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
haven't looked there yet! I'll have to do that! Thanks!!
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Old Apr 20, 2001 | 03:02 PM
  #6  
86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
Thanks IrocZZ3...I found a set of LT1 24# injectors on there for $25! Another $80 to have them cleaned and flowmatched and I'll be on my way!
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Old Apr 20, 2001 | 03:59 PM
  #7  
IROCZZ3's Avatar
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Joined: Aug 1999
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From: San Diego, CA
Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
No problem...damn that's a pretty good deal.
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Old Apr 20, 2001 | 07:54 PM
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Jim's Avatar
Jim
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Joined: Mar 2001
Posts: 144
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From: mid-west, Oh
Car: 85 Camaro
Engine: 305 TPI
Transmission: 700r4
Yes 86 ta the lt1 injectors work just fine, have had them in my 85 iroc for a little over year now
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