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Old 01-24-2006, 01:38 PM   #1
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Default 2004R code ID?

After rejecting my crated 2004R at the station last night because it had someone else's address on it, was open, and was very dirty, I picked it up today. Apparently they had to move crates because the one it was shipped in started leaking ATF out of it and the trucker felt he had to move it. (Might have been nice to put the right address label then )

Just to see that this is the good core that I should have and to eliminate the possibility that some corrupt trucker didn't swap mine out for a garbage rebuild core, can someone show me where I can check the numbers, or, if you're a real hydramatic dork, decode them out of memory? I tried to find it by searching the archives, but the string 2004R comes up so many times, not to mention having to try 200-4R and people incorrectly calling it 200R4 or 200-R4. Thanks in advance.

F79105069314

91AF
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Old 01-24-2006, 04:15 PM   #2
1985Cutlass455
 
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Look at the metal tag on the back passenger side and it will have some large letters painted on it, 2 or 3 digits. If the paint is gone, the same letters will be in the middle of the stamped code on that tag.
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1985 Cutlass Supreme Brougham
1971 455 .030
9.75-1 CR
'C' Heads
Edelbrock Performer Intake
Lunati Harold cam 226-233 @ .050
900 CFM TBI Holley Commander Fuel Injection
TH200-4R From Monte SS
2800 Stall "D5" Converter
GN 8.5 3.73 POSI Rear
36MM TA Sway Bar
True Dual X Pipe Exhaust W-Z Manifolds
Black Interior W/ Lightning Rods

Current Status: Bought a house, car has sat in garage for over 2 years now :O whoops
 
Old 01-25-2006, 07:48 AM   #3
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91AF isn't really a valid code. They are all one number, followed by a two letter code, followed by an "F" if it's an '86 or newer transmission.

http://members.aol.com/powerrslid/thm2004r.html
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Old 01-25-2006, 01:15 PM   #4
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What about the longer string then?
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Old 01-25-2006, 01:39 PM   #5
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Those dont look right to me, here is the tag I am talking about taken from an 87 Monte SS 2004r CZF:
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1985 Cutlass Supreme Brougham
1971 455 .030
9.75-1 CR
'C' Heads
Edelbrock Performer Intake
Lunati Harold cam 226-233 @ .050
900 CFM TBI Holley Commander Fuel Injection
TH200-4R From Monte SS
2800 Stall "D5" Converter
GN 8.5 3.73 POSI Rear
36MM TA Sway Bar
True Dual X Pipe Exhaust W-Z Manifolds
Black Interior W/ Lightning Rods

Current Status: Bought a house, car has sat in garage for over 2 years now :O whoops
 
Old 01-25-2006, 05:18 PM   #6
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Hmm maybe I got it wrong since the guy at the freight depot was actually the one who scraped teh paint off the little tag and read me the numbers, which I wrote down and copied straight to this thread. Maybe I should take a pic of the tag...
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Old 01-25-2006, 06:10 PM   #7
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Perhaps he was reading the serial number stamping on the drivers side lip above the pan? The tag you want is at the rear of the trans on the passenger side. It may not mean much though since its been rebuilt - who knows what valvebody etc is now in there without popping the pan. Not trying to scare you, but once shes cracked open any parts can be tossed in.
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Old 01-25-2006, 06:15 PM   #8
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That's very true, but I wouldn't expect Chris at CK to deceive me by telling me he has parts in there that aren't. My greater concern is that the GN core that he started this build with might have been switched to a weaker core when the freight place moved my trans to another crate.

But if what I have in my garage now actually is the GN core that has been rebuilt with all top of the line parts, what does the GN core still have thats better than all the other 2004Rs?
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Old 01-25-2006, 07:05 PM   #9
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It would have a GN specific high performance Valve body and matching governor. I think the case itself may be specific also but not sure. I think a GN trans has a code of BRF IIRC? Chris seems to be a stand up guy, trucking companys on the other hand scare the crap outta me. A friend of mine still has a rebuilt GN motor lost in trucking limbo on its way from a very reputable turbo buick engine builder. Its been since last spring so its more gone now than lost. Hard to lose a pallet with a motor on it on accident from a specialty turbo buick shop, and im sure they all know who CK performance is by now....
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1985 Cutlass Supreme Brougham
1971 455 .030
9.75-1 CR
'C' Heads
Edelbrock Performer Intake
Lunati Harold cam 226-233 @ .050
900 CFM TBI Holley Commander Fuel Injection
TH200-4R From Monte SS
2800 Stall "D5" Converter
GN 8.5 3.73 POSI Rear
36MM TA Sway Bar
True Dual X Pipe Exhaust W-Z Manifolds
Black Interior W/ Lightning Rods

Current Status: Bought a house, car has sat in garage for over 2 years now :O whoops

Last edited by 1985Cutlass455 : 01-25-2006 at 07:10 PM.
 
Old 01-25-2006, 07:32 PM   #10
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The servo is also a better unit on TAF, B(Q)RF, C(Q)ZF and K(O)ZFtransmissions. That is pretty much the order of best to worst (of the best), but they are all very similar.
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5.7 LITRE / TES Headers / SShaker Hood / WCT5 5-Speed
1970 Pontiac GTO
Orbit Orange Judge Re-creation / YZ RAIII 400 / M20 4-Speed
 
Old 01-25-2006, 07:40 PM   #11
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the parts specific to the better trans are the valvebody, governor, and servo...

the valvebody should be marked to match the trans (for ex, '83 H/O trans is an 'OZ', and the valvebody has 'OZ' stamped in yellow on it)...

the governor is identifiable my methods in chris' manual that are not stored off the top of my head

Servo should be a '694' IIRC... might be the last few digits in the numbers stamped on it.

Chromefeet, you buy a CK performance Stage 1 from Chris?
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Old 01-25-2006, 11:34 PM   #12
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Thanks for the answers, I probably read it in other threads but didn't remember 100%. Since what I have now should be a CK 2004R, the original vb was chucked in favor of Chris' own valvebody, so I'll just have the benefit of the better case and governor?

Luke: I ordered a stage 2, the very last of the old kind he doesn't make anymore. Stage 2s he builds now include a billet OD ring, increasing the cost by $300, but chris told me I didn't need it. An optimistic estimate would have my 350 making 450hp, which is right at the borderline of what a stage 1 takes, and Chris waived the core charge, so I said why not just do the stage 2, I haven't cut any corners with parts yet.

Pics:




So at least I'm sure its a 2004R, but the thought of a trucker swapping out a crappy core or even a good core in need of rebuild for my top notch sh1t won't go away.

The pic doesn't show it well, but the green hydramatic tag on the driver side has been affixed with some silicone sealant type adhesive, and the corners of the tag spill over the little raised pedastal on the case on which it is mounted, is that how its supposed to be? The codes there read:
F7910506 followed by 9314 in subscript. Above that line: 9IAF

The servo tag reads: 8635694, also says LESTER 6 and 8*7 so that would be a GN core right? It still doesn't tell me if it has all the goodies inside that chris puts in his. I might have to pull the pan....
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Old 01-26-2006, 02:26 AM   #13
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Verry odd, the tag is supposed to be by the tailshaft on the passenger side held on by I think a rivet in the center. Also I dont think that is a tag from a 2004r at all, definately not in the correct location. I would call Chris and ask him whats up for sure.
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1985 Cutlass Supreme Brougham
1971 455 .030
9.75-1 CR
'C' Heads
Edelbrock Performer Intake
Lunati Harold cam 226-233 @ .050
900 CFM TBI Holley Commander Fuel Injection
TH200-4R From Monte SS
2800 Stall "D5" Converter
GN 8.5 3.73 POSI Rear
36MM TA Sway Bar
True Dual X Pipe Exhaust W-Z Manifolds
Black Interior W/ Lightning Rods

Current Status: Bought a house, car has sat in garage for over 2 years now :O whoops
 
Old 01-26-2006, 12:27 PM   #14
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I would call Chris... ASAP. Just verify it, he won't mind.
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Old 01-26-2006, 04:51 PM   #15
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Hmm... I sent him an email with the same pics and codes and he said that was the right one, said it was a core from turbo trans am I never knew those existed, or that they had 2004Rs. He didn't mention anything abuot the tag being in the wrong place or about me havnig to scrape the paint off it.... this is very odd.
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Old 01-26-2006, 05:01 PM   #16
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As long as Chris says that IS the tranny he built I would be satisfied its ok. There is definately something odd with that tag because if you compare to the one in my pic it isnt even the same style tag, not to mention the location of it. But maybe he just attached any tag so he could have a number for warrantee purposes? But like I said if Chris says that the correct tranny he sent I would be content that it is a good one.
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1985 Cutlass Supreme Brougham
1971 455 .030
9.75-1 CR
'C' Heads
Edelbrock Performer Intake
Lunati Harold cam 226-233 @ .050
900 CFM TBI Holley Commander Fuel Injection
TH200-4R From Monte SS
2800 Stall "D5" Converter
GN 8.5 3.73 POSI Rear
36MM TA Sway Bar
True Dual X Pipe Exhaust W-Z Manifolds
Black Interior W/ Lightning Rods

Current Status: Bought a house, car has sat in garage for over 2 years now :O whoops
 
Old 01-26-2006, 05:36 PM   #17
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Quote:
Originally Posted by chromefeet_withbeat
Hmm... I sent him an email with the same pics and codes and he said that was the right one, said it was a core from turbo trans am I never knew those existed, or that they had 2004Rs. He didn't mention anything abuot the tag being in the wrong place or about me havnig to scrape the paint off it.... this is very odd.
'89 Turbo T/A's got leftover GN drivetrains. Pretty quick and handled very well too. Same drivetrain as a GN.
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Old 01-26-2006, 06:04 PM   #18
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That is somewhat comforting...I wish he would have given an answer about the tag, though. And also why I have a core/shell from a T/A but a servo from a GN.
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Old 01-27-2006, 08:34 AM   #19
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Quote:
Originally Posted by 83hurstguy
'89 Turbo T/A's got leftover GN drivetrains. Pretty quick and handled very well too. Same drivetrain as a GN.
Nope.

Same general drivetrain, yes, but the heads were different, the trans had a different valve body, and the rear axle was a borg/warner 9-bolt.

I think there were a few other differences in the engine as well, but I don't remember them.
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Old 01-29-2006, 08:51 PM   #20
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Default 200-4r trans code for 1986-1990

86-90 200-4r trans used a 15 digit number.
1st digit: calendar year built.
2nd, 3rd, + 4th: julian date.
5th: plant shift
6th: Hydramatic plant built at
7th + 8th: model year vehicle installed in
9th + 10th: two letter code
11th: is the letter F, denotes 200-4r
last 4 digits: serial number of the trans

The 1989 Pontiac Turbo T/A had a '9TA' for the 8th, 9th + 10th digits. They had superior valve bodies, plates, 1-2 servo's, 3-4 servo's, 2-3 intermediate servo's and governors. Special valve bodies may have a purple strip on them.
 
Old 01-29-2006, 09:03 PM   #21
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Quote:
Originally Posted by 84ZZ4
Nope.

Same general drivetrain, yes, but the heads were different, the trans had a different valve body, and the rear axle was a borg/warner 9-bolt.

I think there were a few other differences in the engine as well, but I don't remember them.
yeah, sorry... I wasn't overly exact. My point was "turbo 3.8 buick motor with a 200-4R trans". And trying to put a G-body rear in an f-body would cause quite a few problems.
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