4.3 vortec in a 4.3 tbi truck - S-10 Forum
 
LinkBack Thread Tools
post #1 of 9 Old 02-06-2012, 05:06 PM Thread Starter
Real Man
 
JadXtreme's Avatar
 
Join Date: Feb 2012
Location: Bladenboro, NC
Age: 29
Posts: 203

User is: JadXtreme is offline
4.3 vortec in a 4.3 tbi truck

I have a 93 S10 with a 4.3 5 speed 4wd and it runs ok. But it uses oil pretty good.

My question is: Can I take a 4.3 Vortec and put on an Edelbrock tbi/vortec intake and my tbi and just swap it into my truck or is there more to it than that? Will my sensors plug into the newer block or will it require alot of splicing or are sensors there that are not on my older tbi block?

Just looking over my options.

JadXtreme is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 02-06-2012, 07:26 PM
Registered User
 
Join Date: Sep 2011
Age: 31
Posts: 59

User is: bigxroebuck is offline
Re: 4.3 vortec in a 4.3 tbi truck

is it burning the oil or leaking it?
bigxroebuck is offline  
post #3 of 9 Old 02-06-2012, 08:52 PM
goin broke but n style
 
S15vortecpwr's Avatar
 
Join Date: Jan 2007
Location: Wetumpka, Alabama
Age: 36
Posts: 12,942

User is: S15vortecpwr is offline
Re: 4.3 vortec in a 4.3 tbi truck

the only issue you may run into is the knock sensor. the threads are different.

so a search and you will see swaps like this.

94 GMC Noma 4.3 CPI auto - under construction
01 Trans Am Ws6 - Garage Queen

12 RAM 1500 CC Hem, stock for now, 17.9 mpg on avg.

01 GMC Noma 2.2L auto - SOLD
99 blazer 4dr 2wd - SOLD

GOIN BROKE BUT N STYLE
S15vortecpwr is offline  
post #4 of 9 Old 02-06-2012, 09:31 PM Thread Starter
Real Man
 
JadXtreme's Avatar
 
Join Date: Feb 2012
Location: Bladenboro, NC
Age: 29
Posts: 203

User is: JadXtreme is offline
Re: 4.3 vortec in a 4.3 tbi truck

Quote:
Originally Posted by bigxroebuck View Post
is it burning the oil or leaking it?
A little bit of both I believe. I just got the truck and got it for a really good deal so I knew getting into it that it wasn't perfect. I'll switch over to some 20w50 oil to hold it over in the mean time though.

I'm still very interested in doing the swap at some point. I would just swap a 350 into it, but I love the gas mileage that I'm getting with this truck over my 350 fullsize, so v6 it will remain.
JadXtreme is offline  
post #5 of 9 Old 02-07-2012, 12:13 AM
goin broke but n style
 
S15vortecpwr's Avatar
 
Join Date: Jan 2007
Location: Wetumpka, Alabama
Age: 36
Posts: 12,942

User is: S15vortecpwr is offline
Re: 4.3 vortec in a 4.3 tbi truck

having a 350 in a s10 could possibly yeild you better MPG due to it doesn't have to work as hard to move the vehicle,

down side to this is having a V8 in a s10 will cause you to keep the gas pedal on the floor and this will get you less mpg.

but going 96+ will yeild more hp/tq over your orig engine.

94 GMC Noma 4.3 CPI auto - under construction
01 Trans Am Ws6 - Garage Queen

12 RAM 1500 CC Hem, stock for now, 17.9 mpg on avg.

01 GMC Noma 2.2L auto - SOLD
99 blazer 4dr 2wd - SOLD

GOIN BROKE BUT N STYLE
S15vortecpwr is offline  
post #6 of 9 Old 02-07-2012, 07:04 AM Thread Starter
Real Man
 
JadXtreme's Avatar
 
Join Date: Feb 2012
Location: Bladenboro, NC
Age: 29
Posts: 203

User is: JadXtreme is offline
Re: 4.3 vortec in a 4.3 tbi truck

If I could get at least 20 mpg with a 350 tbi in this truck, I would swap one in this weekend. I found a post where swapping a 350 tbi would be really easy and everything would plug right in. If that's the case, and my mpg wouldn't take a hit, that's the rought that I would go. On the other hand, knowing me, I would have to be looking at rebuilding the tranny before long (grinds if in a hurry going into 3rd).

Only thing about putting in a 4.3 vortec is spending the money on another intake to fit the vortec heads. And all the intakes I've found will reguire an adapter to run the tbi.
JadXtreme is offline  
post #7 of 9 Old 02-07-2012, 08:29 AM
jax4x4.com
 
pjg1173's Avatar
 
Join Date: Apr 2009
Location: jacksonville, NC
Age: 42
Posts: 2,697

User is: pjg1173 is offline
Re: 4.3 vortec in a 4.3 tbi truck

Quote:
Originally Posted by JadXtreme View Post
I have a 93 S10 with a 4.3 5 speed 4wd and it runs ok. But it uses oil pretty good.

My question is: Can I take a 4.3 Vortec and put on an Edelbrock tbi/vortec intake and my tbi and just swap it into my truck or is there more to it than that? Will my sensors plug into the newer block or will it require alot of splicing or are sensors there that are not on my older tbi block?

Just looking over my options.
short answer yes it will work just fine. the knock sensors from my old motor treaded right in to the new one. the only issue is with the transmission. the 93 block is machined for strut bars to go to the bottom of the transmission and the newer vortecs are not. they use the oil pan to secure the bottom of the bell housing to the motor. I had to make an adapter that attached to the bell housing and bolted up to the oil pan. No big deal really. as long as its a stock motor your ecu will run it, but getting it tuned would yeild better results in both economy and power.

Bigger tires and traction adders just means you get stuck in more inaccessible places.

87 4Runner, SAS, 15" spring lift, 3" body,409 Hp chevy 355, 5.29 gears, 38.5x15.5x15" TSL's
93 S10, SAS, 12" spring lift, 4.30 gears, F/R lockers, 36x12.5x15 TSL's, many more mods
05 Silverado, 2' lift, 4" exhaust, Bully Dog programmer,
00 Jeep Grand Cherokee (Daughters)

04 Chevy Colorado ZQ8 (other Daughters) 3" drop, 235/50r17
pjg1173 is offline  
post #8 of 9 Old 02-08-2012, 06:53 AM Thread Starter
Real Man
 
JadXtreme's Avatar
 
Join Date: Feb 2012
Location: Bladenboro, NC
Age: 29
Posts: 203

User is: JadXtreme is offline
Re: 4.3 vortec in a 4.3 tbi truck

Have you got any pics of this adapter plate that you had to make for the newer block? I have a manual transmission, would I still need the adapter plate?
JadXtreme is offline  
post #9 of 9 Old 02-08-2012, 10:07 AM
jax4x4.com
 
pjg1173's Avatar
 
Join Date: Apr 2009
Location: jacksonville, NC
Age: 42
Posts: 2,697

User is: pjg1173 is offline
Re: 4.3 vortec in a 4.3 tbi truck

You can kind of see it in this pic. nothing special. I'm not sure how the manuals on these bolt up to be sure, but I don't think it would be a problem


Bigger tires and traction adders just means you get stuck in more inaccessible places.

87 4Runner, SAS, 15" spring lift, 3" body,409 Hp chevy 355, 5.29 gears, 38.5x15.5x15" TSL's
93 S10, SAS, 12" spring lift, 4.30 gears, F/R lockers, 36x12.5x15 TSL's, many more mods
05 Silverado, 2' lift, 4" exhaust, Bully Dog programmer,
00 Jeep Grand Cherokee (Daughters)

04 Chevy Colorado ZQ8 (other Daughters) 3" drop, 235/50r17
pjg1173 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the S-10 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address.


Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome