Looking at a 9c1 - Chevy Impala SS Forum
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post #1 of 24 (permalink) Old 06-08-2018, 08:50 AM Thread Starter
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Looking at a 9c1

As the title states, I'm looking at buying a 95 9c1. I've never had a b-body before, but I always did like the Impalas ever since seeing them on the dealer's lot when I was in middle school. So with that, and the desire to own something fast that can fit my wife and two kids, I started looking on Craigslist for a regular Caprice. What I found, that I'm very interested in, is a 95 9c1, rust free Alabama car, with a 383 and t56. My first question is, what do I look for or check out on these? How is a 383 for a daily driver? I hear that mileage is good on stock cars, how good or bad is it with a stroker? It's got 4.56 gears, which seems a little high for a driver, what do you think? It is likely to see highway miles.
I haven't contacted the owner yet since I have a house to close on first but I'm certainly going to ask him/her questions before I drive 3 hours one way to see it.
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post #2 of 24 (permalink) Old 06-08-2018, 09:05 AM
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Using that car as a daily driver is not recommended.

I think you're better off finding a plain jane Caprice. Most 94-96 will still have the LT-1 (check!) Keep an eye out for a low mileage one owner car. They can still be found, but it will take some work.

And just remember these car are over 20 years old.
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post #3 of 24 (permalink) Old 06-08-2018, 09:37 AM
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I'd guess that a 383-T56-4.56 combo would get low 20s for highway MpGs so long as you kept your foot out of it, but better than 13 metro-urban MpG would be very impressive and very unlikely.
(My idea of 'metro-urban' is the 5boros of NYC.)

With a 4L60E, 3.42 & 3.73 are usually great axle gears.
With a T56, 3.73 becomes the absolutely barely adequate minimum, except MAYBE for the crazy person who needs highway MpGs very badly; anything under that is just plain DUMB.
4.10 & 4.56 are much wiser choices, even with a 383. (You MIGHT consider 4.10 for a daily driver unless most of your mileage will be metro-urban.)

Ask about the condition of the fueling, ignition, and ancillary electrical systems.
I'm also always concerned about the brakes, steering, & suspension.

Unless it's in very impressive condition, I pretty much agree with jiml. I'll add that I think you may wish to widen your vista to include RoadMasters & Fleetwoods as well.

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post #4 of 24 (permalink) Old 06-08-2018, 10:01 AM Thread Starter
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Most of my driving is to work and back, about 20 minutes of back roads, not much stop and go. Same with going to any store, I'm surrounded by farms.

What makes it not suitable for daily use?

I looked at a few Fleetwoods, I just don't care for them. Originally I wanted a wagon, but they are few and far between where I am.
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post #5 of 24 (permalink) Old 06-08-2018, 10:53 AM
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They said not suitable for daily use, from the perspective of you will be pissing thru fuel like crazy cuz of the hungry motor and rear end gears.

I suppose you could change gears and have the PCM tuned again for MPG and the gear change obviously.

you have a good amount of things to weigh with the car, its not stock LT1 and has T56 no a 4L60E. The manors of the car are great weekend warrior and drag car.

Good Luck and have fun !
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post #6 of 24 (permalink) Old 06-08-2018, 12:42 PM
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Quote:
Originally Posted by Marky Dissod View Post
I'd guess that a 383-T56-4.56 combo would get low 20s for highway MpGs so long as you kept your foot out of it,
With a 383, a T56, and 4.56's, there's no way in hell I'm keeping my foot out of it!

Sorry, had a moment there.
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post #7 of 24 (permalink) Old 06-08-2018, 12:45 PM
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I would not run anything less than 4.56's with a t-56. I say have it checked out by a mechanic and if it is in good shape, go for it. Read up on these cars here on the forum. You will not use gobs of gas unless you get on it a lot which you will be tempted. If you drive that little to work and back, get out on the weekend and drive it. Short trips like that are bad for your car. Also, both 5th and 6th are overdrive gears so your 4.56's will be fine on the highway. I wish I had that setup. Good luck and have fun.

Jim B.

'95 9c1, pcmperformance.com 93 tune, Dynomax Ultraflo catback, K & N box filter, LT4 KM, 160 stat, 3.08 Posi.
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post #8 of 24 (permalink) Old 06-09-2018, 09:17 AM
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When considering B-Bodies... Remember Lt1 only came in 94-96.

Also remember that the Civilian Caprice normally came with the "red headed step child" 4.3 and was very unlikely they came with the Lt1.
For 9C1 Caprices the LT1 was an option but I have seen 9C1's with the 4.3 as well.

The Impala SS only came with the LT1 and I am unsure about the other sedans if they came stock with Lt1 or not (Buick, Cadillac). The Wagons I drove when I was a taxi driver all had the Lt1's so I don't know if the wagons were standard or not. You will want to look at the VIN to see what engine it came with. The 4.3 and 5.7 engines look identical on the external.

Rodney
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post #9 of 24 (permalink) Old 06-09-2018, 09:52 AM
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Only two Caprice wagons ever came with a 4.3L L99 V8. 1G1BL82W1RR100027 is the VIN for one of them, I never found the VIN for the other one.
By now, odds are no one ever will.

Apart from the above exceptions:
ALL 94-96 B-wagons and ALL 94-96 Buick RoadMasters came with LT1, and either 2.56 or 2.93.
ALL 94-96 Cadillac Fleetwoods came with LT1, and either 2.56, 2.93 … or 3.42.

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post #10 of 24 (permalink) Old 06-09-2018, 02:38 PM
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35% of 9C1's had the l99. Not all civilian cars were L99's. All B4U's came with the LT-1 and Posi and have other nice features. Try to avoid patrol cars and taxis.

Jim B.

'95 9c1, pcmperformance.com 93 tune, Dynomax Ultraflo catback, K & N box filter, LT4 KM, 160 stat, 3.08 Posi.

Last edited by fbi9c1; 06-09-2018 at 02:42 PM.
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