1986 GMC S-15 Jimmy 2.8L needs bigger motor……Suggestions?
Question:
In article > I have a blazer with 4.3 High Output Vortec and an s10 with the 4.3 > Vortec…and they are totally different….different heads, intake, > etc..
They are not totally different. All the difference is is the intake and fuel injection system. It is basiclly the sme excact engine. * Sent from RemarQ http://www.remarq.com The Internet’s Discussion Network * The fastest and easiest way to search and participate in Usenet – Free!
Response:
yes, but you just can’t swap them around……like people think you can easily swap a 2.8 for a 4.3… – Hide quoted text — Show quoted text – >In article > I have a blazer with 4.3 High Output Vortec and an s10 with the 4.3 > Vortec…and they are totally different….different heads, intake, > etc.. >They are not totally different. All the difference is is the intake >and fuel injection system. It is basiclly the sme excact engine. >* Sent from RemarQ http://www.remarq.com The Internet’s Discussion Network * >The fastest and easiest way to search and participate in Usenet – Free!
Response:
True the OH 4.3 does have a different computer than the TBI 4.3. But as long as you master that it is a fairly simply change. * Sent from RemarQ http://www.remarq.com The Internet’s Discussion Network * The fastest and easiest way to search and participate in Usenet – Free!
Response:
FYI – 3.4l Upgrade Crate Engine GM Part # 12363230. jed
– Hide quoted text — Show quoted text -> I am really shocked that this vehicle only has a 2.8L. My brother has a 4.3L > ‘91 S-10 Blazer. He recently had a nearly new engine put in because his other > one was real rough. I have driven his and the difference is enormous. I like > the S-15 and want to have at least the power that he has. I have thought about > trying to get a 4.3L engine but then I would have to get a computer for the > larger size too. I don’t think a new 2.8 would make much of a difference. The > other thought I had was of getting a small block 350 or 400 and using a 4 > barrel carb…..of course that would require other mods such as tranny and > radiatior. I would like suggestions as to the best upgrade. Which is easiest? > Which provides the best performance? These questions I probably know the > answer too, but I would like specifics about the options. If anyone has done > anything like this, what did you do and what was the performance gain. I > appreciate any informative responses. > John
Response:
I am really shocked that this vehicle only has a 2.8L. My brother has a 4.3L ‘91 S-10 Blazer. He recently had a nearly new engine put in because his other one was real rough. I have driven his and the difference is enormous. I like the S-15 and want to have at least the power that he has. I have thought about trying to get a 4.3L engine but then I would have to get a computer for the larger size too. I don’t think a new 2.8 would make much of a difference. The other thought I had was of getting a small block 350 or 400 and using a 4 barrel carb…..of course that would require other mods such as tranny and radiatior. I would like suggestions as to the best upgrade. Which is easiest? Which provides the best performance? These questions I probably know the answer too, but I would like specifics about the options. If anyone has done anything like this, what did you do and what was the performance gain. I appreciate any informative responses. John
Response:
gm sells a 3.4 to replace the 2.8 (exact fit) all accessories bolt right on….it puts out 150 hp (torque???) I forogt…but the 4.3 is 165 HP (lots of torque)……. I love reading how everybody thinks he can just stick a 4.3 in his 2.8 turck……go look at one…the ac compressor is on the other side, the alt. is on the opposite side, the radiator won’t work, the exhaust won’t work, the COMPUTER will NOT work, the 2.8 is a 60 degree v6, the 4.3 is a 90 degree….different everything…. I have a blazer with 4.3 High Output Vortec and an s10 with the 4.3 Vortec…and they are totally different….different heads, intake, etc.. – Hide quoted text — Show quoted text ->I am really shocked that this vehicle only has a 2.8L. My brother has a 4.3L >’91 S-10 Blazer. He recently had a nearly new engine put in because his other >one was real rough. I have driven his and the difference is enormous. I like >the S-15 and want to have at least the power that he has. I have thought about >trying to get a 4.3L engine but then I would have to get a computer for the >larger size too. I don’t think a new 2.8 would make much of a difference. The >other thought I had was of getting a small block 350 or 400 and using a 4 >barrel carb…..of course that would require other mods such as tranny and >radiatior. I would like suggestions as to the best upgrade. Which is easiest? > Which provides the best performance? These questions I probably know the >answer too, but I would like specifics about the options. If anyone has done >anything like this, what did you do and what was the performance gain. I >appreciate any informative responses. >John
