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post #1 of (permalink) Old 02-06-2001, 09:05 PM
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engine

Will any engine work (2.8,3.1,3.4,ect.). Or does the engine have to be from a 4x4 vehicle. A couple junk yards around said that any old 2.8 wouldnt work for the 4x4. Is this true or what. Also if anyone has anymore info about putting a 3.8L GM in it, if it would work; it would be much appretiated.

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post #2 of (permalink) Old 02-07-2001, 01:08 PM
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Re: engine

I know that GM had a couple of different bell housing patterns out back in the day. There was the Chevy bolt pattern and what they called the BOP pattern (Buick, Oldsmobile, Pontiac). As long as the engine bolts up to your transmission, you should be able to make it work.

There is essentially no difference between 2wd and 4x4 engines that I am aware of.

The problems I see with installing something different than what you already have in your truck is the engine control module (ECM). Installing any fuel injected engine with a different displacement or fuel delivery system will require swapping ECM's (computers) and a lot of wiring work. It's not impossible, but it would be a lot of tedious, brain numbing work.

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post #3 of (permalink) Old 02-07-2001, 07:00 PM
 
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Re: engine

It all depends on a few items.

1. what was the original transmission (or original engine) in your truck?
2.8's and 3.4's should bolt up with the same pattern; they are both 60 degree v6's. 4.3's will not bolt up as it's a 90 degree v6 and shares a common bolt pattern with the 350 v8. The 3.1 is, I'm pretty sure, a 60 also.
2. The only differnce in 4x2 vs. 4x4 is probably the oil pan. You might have problems with an Astro Van V6 oil pan against the stock front differential. I'm *pretty sure* this is the case.
3. Are you swapping in "Everything" or just the motor? You'd be better off swapping everything, or if you're looking for more "ooomph" read back posts on swapping a 3.4 liter from a 2.8 liter.



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