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Old 09-20-2003, 10:30 AM   #1
nosto
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Seeking help/info on S-10 Blazer (transplant)

I know nothing about this model, but,

I have a chance to do a favor for a neighbor whose son trashed the engine in his '84 S-10 5-speed. I found a wrecked '89 auto, 4.3L in good running condition. I plan to transplant the engine and maybe the trans from the '89 into the '84 (frame damaged on the '89).

Is this a weekend project for someone who has done engine/trans conversions before?

Tried google and didn't find any useful info, just a lot 'For Sale'.

Any major gotchas'? Like different engine mounts or other structural changes? Driveshaft lengths OK going from manual to auto? How about wire harness diffs?

Do I jump into this one or leave it alone? Remember, this is a favor, no money involved....

Thanks,
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1972 Triumph TR6 - full resto, now with a Toyota 5-speed
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1967 C-10, shortstep, 350/M21 4spd, nitrogen tank fills fast bags on 4 corners, Toyo 255/45X20s on American Eagle 221 20X8s, shaved locks and handles, antenna, fuel filler, tiny C-notch, rear fuel tank, long headers, Edelbrock, worn 600 Holley, Checkmate flush hard cover, rear pan, custom LED taillights - painted it, too! But don't like it so I'm gonna do it again!!
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Old 09-20-2003, 08:55 PM   #2
method2mymadnes
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If the 84 is anything but a 4.3, nothing will bolt up including the motor mounts or the transmission. I would use all the 89 4.3 stuff including the engine harness.
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Old 09-20-2003, 11:01 PM   #3
ItsNotABlazer
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Might check out www.s10forums.com or maybe its www.s10forum.com One is a much better site than the other but I cannot recall which is which lol. They have a pretty informative message board there that might be of help.

Brad
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Old 09-21-2003, 09:06 AM   #4
TODDS 72
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if you have both trucks side by side you'll have everything you need,but it will prolly take you a couple weekends to do the hole job.
good luck
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Old 09-23-2003, 08:16 AM   #5
Tink
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Check http://forums.s-series.org/. The guys there are pretty knowledgable.

As long as the trucks are the same length (both short box or extended cab....), and you switch the engine and tranny you should be fine. The 84 tranny will probably not bolt up... I imagine the 84 has either the 2.5L iron duke or the 2.8L. You would have to use the wiring harness and computer from the 89 as well. Also, you may want to check the gears in these trucks to make sure you aren't "winding-out" the 4.3L to turn the gears in the 84's rear. The RPO code for gears in usually the G codes in the glove box (i.e. GU6=3.42)

This will probably take quite a few weekends and it will probably be best to take off the whole front clip and fenders. Also, be sure to well label everything.

If you run into any trouble with the 89 4.3L or tranny wiring or anything, let me know... I have an 89' 4.3L and a 91' 4.3L I can take pictures of to send you.
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