Swapping a 86 350 into an 89 suburban

Asked by Justinhkwyatt Jan 11, 2017 at 05:46 AM about the 1989 GMC Suburban R1500

Question type: Maintenance & Repair

I have 1989 gmc suburban with a 350 tbi. I found a
good deal on a engine out of an 1986 suburban.
How hard would this be to swap?

5 Answers
224,085

Rowefast answered 7 years ago

Ah, no they are not Vortec, the 5.7L (350) came out in 1996. These engines will interchange. You just may have to change the intake, and associated parts.

Mark helpful
224,085

Rowefast answered 7 years ago

Right, If you look at the intake in how it is bolted down the Vortec has less bolts to hold it down on the 5.7L

Mark helpful

Your Answer:

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