9C1 - Chevy Impala SS Forum
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post #1 of 33 (permalink) Old 12-24-2000, 04:31 PM
Mattia SS
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Keep seing this 9C1, what is that?

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post #2 of 33 (permalink) Old 12-24-2000, 04:43 PM
NitrouSS Nick
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It is a police package Caprice. Like what I have below.

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94 Gold 9C1/CAI,airfoil,
T/B bypass,March pullies MSD,LT4 K/M,Ed Wright PCM,2500 Pro Torque conv.,4.10s`,cat delete,H-pipe,2 chamber flomasters w/factory resonators,Holley 255lph intank 275/60-15 all around,D/R on back,Buick brace,Bonnie [email protected]
post #3 of 33 (permalink) Old 12-25-2000, 08:44 AM
Mike454SS
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9C1 = father of the SS. If it hadn't been for the 9C1, your SS wouldn't exist. A man by the name of John Moss at Chevrolet took a police package caprice and based on a custom job he had seen once, converted it into the first SS, except his has a 510 cubic inch big block under the hood a red bowtie on the grille, and he had the ROH ZR6 rims which look very similar but are 17x10 instead of the stock 17x8.5 The 9C1 has more heavy duty stuff than the SS, less luxury stuff than the SS, more chrome than the SS and is not quite as low to the ground. The 9C1 was available with a stock 4.3 liter baby engine very simlar to the SS's LT1, only smaller, and for a $550.00 option, a 9C1 could have the LT1 as well. Also, the SS came with a posi rear end, the 9C1 required an additional $100.00 to get the posi rear end. The SS also has a slightly wider rear axle, but its hard to notice, and doesn't provide a performance benefit. The 9C1 also has 4 wheel disc brakes, similar to the SS, but the 9C1 holds thicker pads. Keep paying attention to this forum, the differences between the two cars becomes obvious, and it is very easy to clone an SS from a 9C1.
 
post #4 of 33 (permalink) Old 12-25-2000, 12:10 PM
Sleeper
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Mike, all b-bodies have the same axle.
SEO 9C1: Special Equipment Option 9C1. This is GM's Regular Production Option code # for a B-body police package, just like LT1 is the RPO for a 350 MFI V8.

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Pat Flavin
'94 Caprice LT1

[This message has been edited by Sleeper (edited December 25, 2000).]
post #5 of 33 (permalink) Old 12-25-2000, 02:09 PM
GhoSSt
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<BLOCKQUOTE>quote:</font><HR>Originally posted by Sleeper:
Mike, all b-bodies have the same axle.
<HR></BLOCKQUOTE>

No, the 9C1 rear is 30mm narrower than a civi or an SS, holdover from the boxy 9C1 days.

And it Jon Moss, not John.



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Kelly 'GhoSSt' Rosato
1996 Impala SS, 383 LT4 (14.65 up here, 13.24 lower)
1984 Firebird, +.060 350 (Vortech Heads, HOT Cam, and schtuff)
1993 Caprice, 5.7 TBI (stock . . . FOR NOW)

"And if you wrong us, shall we not revenge? Revenge. The villany you
teach me, I will execute, and it shall go hard but I will better the
instruction."

Shylock in Act III, Scene I of 'Merchant of Venice' by William Shakespeare
post #6 of 33 (permalink) Old 12-25-2000, 03:38 PM
Sleeper
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All the axles are hold overs from the boxy days, as well as the frame. I don't mind being wrong though, as long as I can become better informed. Got a source for the 30mm shorter thing?
post #7 of 33 (permalink) Old 12-25-2000, 04:03 PM
Mike454SS
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sorry about the double post

[This message has been edited by Mike454SS (edited December 25, 2000).]
post #8 of 33 (permalink) Old 12-25-2000, 04:04 PM
Mike454SS
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thanks for the help GhoSSt, I don't have a source on the axle thingy, but I do know for a fact the SS one is wider, go yank a rear off an SS and a 9C1 and put em next to each other. Jon huh, I have a few family memebers who spell there names John, my mistake, I will from now on spell the all mighty father of the 94-96 Impala SS correctly. Jon Moss
post #9 of 33 (permalink) Old 12-25-2000, 05:47 PM
AutocroSSer
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Thanks GhoSSt, the "Jon" vs "John" thing is a pet peeve of mine....especially from guys and girls who have their cars signed. For those folks, I say read your friggin trunklid

As for the axle narrower thing : it's in that handy-dandy book called the FSM. Few other good items in it as well . Seriously, there are a few tables in the FSM that list basically EVERY spec whatsoever on the rear axles that came in the B-bodies of that year (96 in my case).

And back-to-back (i.e. my 96 SS with 17x9.5" ROHS parked next to a 96 9C1 with the same tires), it was pretty obvious that my car had a wider axle. That little bit of width is a lot more noticable visually than you'd think it would be.

Ed
post #10 of 33 (permalink) Old 12-25-2000, 05:48 PM
AutocroSSer
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Thanks GhoSSt, the "Jon" vs "John" thing is a pet peeve of mine....especially from guys and girls who have their cars signed. For those folks, I say read your friggin trunklid

As for the axle narrower thing : it's in that handy-dandy book called the FSM. Few other good items in it as well . Seriously, there are a few tables in the FSM that list basically EVERY spec whatsoever on the rear axles that came in the B-bodies of that year (96 in my case).

And back-to-back (i.e. my 96 SS with 17x9.5" ROHS parked next to a 96 9C1 with the same wheels/tires), it was pretty obvious that my car had a wider axle. That little bit of width is a lot more noticable visually than you'd think it would be.

Ed
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