Which parts will work for a 90-92 speed density TPI?
#1
Which parts will work for a 90-92 speed density TPI?
So, I'm collecting parts for my 79 L82 350 speed density TPI conversion. I need fuel rails, distributor, plenum, throttle body, throttle linkage/pedal and wiring harness. I see the 89 and the 90-92 plenums are the same, can I use 89 distributor, throttle body, fuel rails throttle linkage/pedal, and wiring harness as well as the 90-92 versions?
Also, I understand the only difference between the 305 and 350 TPI systems is the size of the injectors. But I see in the link below GM had different part numbers for the 305 and 350 fuel rails. Can I use fuel rails from a 305 for my 350 build?
http://www.chevythunder.com/
(TPI swapping into an older vehicle fifth page)
17089024 1989 5.0 Rochester
17090100 1990-91 5.0 Rochester
17089025 1989 5.7 Rochester
17089026 1990 5.7 Rochester
17080101 1990-91 5.7 Rochester
17080102 1990-91 5.7 Rochester
Also, I understand the only difference between the 305 and 350 TPI systems is the size of the injectors. But I see in the link below GM had different part numbers for the 305 and 350 fuel rails. Can I use fuel rails from a 305 for my 350 build?
http://www.chevythunder.com/
(TPI swapping into an older vehicle fifth page)
17089024 1989 5.0 Rochester
17090100 1990-91 5.0 Rochester
17089025 1989 5.7 Rochester
17089026 1990 5.7 Rochester
17080101 1990-91 5.7 Rochester
17080102 1990-91 5.7 Rochester
Last edited by Priya; 07-20-2016 at 01:39 PM.
#2
Re: Which parts will work for a 90-92 speed density TPI?
I found another source that says the 89 plenum is unique to the 89 and the 90-92 plenums are the same. Not sure what to think now.
#3
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Which parts will work for a 90-92 speed density TPI?
So, I'm collecting parts for my 79 L82 350 speed density TPI conversion. I need fuel rails, distributor, plenum, throttle body, throttle linkage/pedal and wiring harness. I see the 89 and the 90-92 plenums are the same, can I use 89 distributor, throttle body, fuel rails throttle linkage/pedal, and wiring harness as well as the 90-92 versions?
Also, I understand the only difference between the 305 and 350 TPI systems is the size of the injectors. But I see in the link below GM had different part numbers for the 305 and 350 fuel rails. Can I use fuel rails from a 305 for my 350 build?
http://www.chevythunder.com/
(TPI swapping into an older vehicle fifth page)
17089024 1989 5.0 Rochester
17090100 1990-91 5.0 Rochester
17089025 1989 5.7 Rochester
17089026 1990 5.7 Rochester
17080101 1990-91 5.7 Rochester
17080102 1990-91 5.7 Rochester
Also, I understand the only difference between the 305 and 350 TPI systems is the size of the injectors. But I see in the link below GM had different part numbers for the 305 and 350 fuel rails. Can I use fuel rails from a 305 for my 350 build?
http://www.chevythunder.com/
(TPI swapping into an older vehicle fifth page)
17089024 1989 5.0 Rochester
17090100 1990-91 5.0 Rochester
17089025 1989 5.7 Rochester
17089026 1990 5.7 Rochester
17080101 1990-91 5.7 Rochester
17080102 1990-91 5.7 Rochester
The plenums have a few differences, cold start inj, 85-88, 89 no cold start and still maf, 90-92 no cold start inj and has extra vac port and mount for the map sensor.
May be a few other little things but those are the big ones.
Last edited by TTOP350; 07-21-2016 at 08:54 PM.
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