11-05-2009, 10:51 PM
|
#1 |
Age: 28
Join Date: Feb 2003
Posts: 12,154
Location: Pittsburgh Pa User is: OffLine |
4.3 tbi to 350 tbi
i know there has to be a bunch of threads on this.. but cant seem to find them.
anyways i have a 4.3 tbi 89 s10 with a 91 tbi harness in it. (previous owner hacked the shit out of the original harness so i just swapped it out) I also own a nice 91 suburban with a 350 tbi motor in it that im considering tossing into the s10. Will that motor connect directly up to my s10's harness, computer, and run fine? run lean? would it be better to run the computer out of the burban? any need to swap the tbi setups around? so basicly is there any issues with the wiring and fuel calibration that i will need to change other then swapping parts? Last edited by 98layinframe : 11-05-2009 at 10:52 PM. |
|
|
|
11-05-2009, 11:14 PM
|
#2 |
|
Gettin' ready for V8!
 Join Date: Dec 2007
Posts: 338
Location: Gulfport, MS User is: OffLine |
Re: 4.3 tbi to 350 tbi
The harness on your 4.3 will work on the 350. Just swap the chips from the suburban computer to the computer in your s10.
|
|
|
|
11-05-2009, 11:28 PM
|
#3 |
|
Not rich, Just broke
Age: 27
Join Date: Jan 2004
Posts: 665
Location: Alexandria, LA User is: OffLine |
Re: 4.3 tbi to 350 tbi
yup what he said or if u dont wanna spend the extra time takin the chip out just swap complete computers, i'm finishin up a tbi to tbi swap now
|
|
|
|
11-06-2009, 11:57 AM
|
#4 |
|
Registered User
Age: 47
Join Date: Mar 2007
Posts: 566
Location: User is: OffLine |
Re: 4.3 tbi to 350 tbi
The ESC module also has to be changed over.
|
|
|
|
11-06-2009, 12:12 PM
|
#5 |
|
Not rich, Just broke
Age: 27
Join Date: Jan 2004
Posts: 665
Location: Alexandria, LA User is: OffLine |
Re: 4.3 tbi to 350 tbi
yup almost forgot about that...93-95 tbi's dont but the older ones do
|
|
|
|
11-06-2009, 02:19 PM
|
#6 |
|
Age: 28
Join Date: Feb 2003
Posts: 12,154
Location: Pittsburgh Pa User is: OffLine |
Re: 4.3 tbi to 350 tbi
esc module? what and where is it?
|
|
|
|
11-06-2009, 07:06 PM
|
#7 |
|
Registered User
Age: 30
Join Date: Oct 2009
Posts: 65
Location: User is: OffLine |
Re: 4.3 tbi to 350 tbi
use the whole TBI unit off the suburban and the ecm.
|
|
|
|
11-06-2009, 11:28 PM
|
#8 |
|
Not rich, Just broke
Age: 27
Join Date: Jan 2004
Posts: 665
Location: Alexandria, LA User is: OffLine |
Re: 4.3 tbi to 350 tbi
it basically controls teh spark of the system and it should be on the firewall if i remember correctly.
|
|
|
|
11-10-2009, 01:12 PM
|
#9 |
|
Registered User
Age: 23
Join Date: Aug 2005
Posts: 1,034
Location: User is: OffLine |
Re: 4.3 tbi to 350 tbi
|
|
|
|
11-10-2009, 04:07 PM
|
#10 |
|
Age: 28
Join Date: Feb 2003
Posts: 12,154
Location: Pittsburgh Pa User is: OffLine |
Re: 4.3 tbi to 350 tbi
ok good deal, i know exactly what part you guys are talking about.
Now i just have to deal with fighting the steering column and clearing the headers or manifolds which ever i decide to run.  |
|
|
|
11-10-2009, 09:23 PM
|
#11 |
|
Registered User
Age: 25
Join Date: Mar 2008
Posts: 118
Location: User is: OffLine |
Re: 4.3 tbi to 350 tbi
whats the part number on a ESC for a 350 TBI? I have a few in my garage and i cant remember which is for a 350 and which is for a 4.3
|
|
|
| Thread Tools | |
|
|
