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Old 05-01-2002, 08:34 PM   #1
bluec10
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Question Should I buy it if it has a 4.3?

I've been looking around for a good truck. I'm not thinking of turning it into a cruiser or anything, just a good solid truck for getting from A to B, that is reliable, and isn't too rusty. I found a nice '87 Chevy 4x4 with a pretty good body, but it has a 4.3 in it. The motor is pretty new (has 12000 miles). What's the word on the 4.3? Power? Reliability? Are there some performance parts? Any help would be appreciated.

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Dream: '68 C-10 Custom with a 396 and a 700R4
Current Reality: '68 C-10, 250, 3 speed, parts in two garages, but lots of hope.
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Old 05-02-2002, 10:16 AM   #2
MJN
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4.3 have always been good engines. Powerful, reliable and have a few performance mods available through GM and others. Your truck should be around 200 or so hp, and you should be able to get a K&N filter, maybe put a cam in it and some aluminum heads and headers for it. They are basically a 350 with two cylinders cut off. We have one in our '94 GMC Jimmy and it has always been very dependable and powerful. I would get that truck if it will do what you want it to.
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Old 05-02-2002, 11:23 AM   #3
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I think that you will enjoy this motor. I had a chevy astro van with a 4.3 and it towed 9000 lbs across the united states with no problems. Its very good for basic transportation.
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Old 05-04-2002, 10:25 PM   #4
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The 4.3 is a tough and long lasting motor. You should be able to get 200xxx miles out of it, at least. They are pretty powerful in a S10, and should be able to move the fullsize truck with no problems.

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My Daily-Driver: '72 Chevy LWB Custom/10. Rebuilt 350, roughly 300 HP thanks to a 204/214 duration cam, Edelbrock Performer intake and 1406 carb, headers, and 40 seires Flowmaster mufflers. Ochre with a white top. Lots of fun .

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Old 05-05-2002, 12:02 PM   #5
Longhorn Man
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Is this 4.3 the early vortec with the Central Port Injection, or is it the Z code with a throttle body? The Vortecs with the CPI were pretty much troublesome.
I am not too happy with mine, but it wouldn't stop me from buying a truck...an 350 is just about a bolt in.

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Old 05-05-2002, 11:35 PM   #6
chevy72402
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My 1989 s-10 blazer has a 4.3 and I just turned over 170,000 I got it with 50,000 in 97 and have had hardly minimum problems with it!

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84 k10 4x4 crate 350 with 330 hp


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Old 05-15-2002, 10:42 AM   #7
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Longhornmail, Those CPI are easy to fix. We just replaced ours and runs like new.
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Old 05-15-2002, 12:15 PM   #8
crossy
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4.3's = same bore & stroke as a 350. CPI wasn't available AS AN OPTION until 92. the first year or two of production they had a Q-jet on them. great little engnes , VERY small difference between it and a 305 as far as power goes , but gets better fuel mileage. sound sweet with good duals too.
BZZZZZZZZZZZZZZZZZZZZ. DAVE

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Old 05-29-2002, 04:50 AM   #9
71Chev
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My 91 S10 Blazer (2 wd) has 200K miles and running strong.
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Old 05-30-2002, 08:29 AM   #10
Zkast
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4.3 is the perfect answer for the S10 series/Astro van but somewhat under powered in a full size (still not bad though)... BUT a 4.3 in a full size truck with 4x4? we have a saying for trucks like this in the shop, Gutless wonders. No offense to folks who have these but if I were looking at a 4x4 fullsize? a 4.3 v6 is the last thing I would want to see under the hood. Stock (if I remember correctly) these engines produced 171hp with the tbi version. cpi didnt come out till later....
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Old 05-31-2002, 03:09 PM   #11
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its a good engine but it will never be a hot rod
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Old 06-02-2002, 01:00 AM   #12
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i think it would do fine for what you are looking for.Also is it auto or manual tranny?
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