Engine replacement instructions please?

Tiny
FRANDONBEAR
  • MEMBER
  • 1995 GMC SONOMA
  • 6 CYL
  • 4WD
  • MANUAL
  • 250,000 MILES
I have a 95 gmc sonoma that has a 4.3L throttle body, and the engine is dead. Can I put a 4.3L vortec in that truck?
Monday, March 7th, 2011 AT 7:51 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

In order to put a newer Vortec engine on that truck you will have to do some modifications.
First, they will have different engine mounts. This will require custom mounts.
The engine management system is different on that engine so all the computers are different as well. So, you will have to get all those components in order for the engine to function properly.

https://youtu.be/zy1CozLgWUQ

I attached diagrams for your reference.

Please let me know of any questions.
Thank you.
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Sunday, September 26th, 2021 AT 12:14 PM

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