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89 S-10 engine change

Tiny
1991CENTURY
  • MEMBER
  • 1989 CHEVROLET S-10
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
I have a 1989 S-10 xtend cab. It currently has the 4.3, and 700r4 trans. My question is, would a 2.5 bolt in with this trans, and could I use the current wiring harness. The truck also has the digital dash, and is a tahoe model. Thanks in advance for any advice.
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Saturday, February 12th, 2011 AT 7:54 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,307 POSTS
The wiring harness needs changed, the computer needs changed, just about everything needs changed. I believe the trans will bolt up, but it's not worth the time, money, and effort to make this happen. You are further ahead getting a direct fit engine.
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Sunday, March 13th, 2011 AT 4:36 AM

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