Torqomeo

Im not asking this for me but a buddy of mine with a '87 Regal. I don't think G-body has a web page like this so i'm hoping one of you guys might know? At any rate, he has a 454 out of something probally a truck. He's going to put a lumpy cam in it a Comp Cams 268H grind to be exact and a Edelbrock RPM manifold and a Street Avenger 750 carb. It should be makin some good torque #s at anyrate. The main question though is will a 200-4R stand up behind this motor alone or with some mods?

Apeiron

I can't comment on the transmission, but a 268 cam will by no means be lumpy on a 454.

transfixleo

Of course it will have to be built properly but if it isn't going to be like 700 HP or anyuthing lke that then a good build along with the TransGo Reprogramming Kit and Unbreakable Pump Ring Kit will take you a long way. The average 200-4R won't have high WOT shift points and it is not as easy as a 700 to get them but then again, most 454's don't wind out like a small block does and if need be, just hold the shifter back till a higher RPM.

Torqomeo

Are we talking the same grind camshaft? On comp cam's page they say the 268 has a slightly rough idle (ie Lumpy). By the way it's a Xtreme Energy Cam not High Energy. I just noticed that. Oh ya does anyone know the link to TCI's webpage?

Torqomeo

Maybe i should have asked this first will a 2004R even bolt up to a big block???

SoCo80p

iTrader: (5)

454 will bolt up, but will blown the trans to pieces in probley the first drive, that trans is VERY weak, you will eather need to go TH400 or get that 2004r or a 700r4 built VERY strongly (TCI trans time)

F-BIRD'88

Check out Art Carr Transmissions for TH2004r
info.....
http://www.artcarr.com

That 268 Extreme energy cam will be pretty tame in a 454. But will work nicely on the street. Lumpty doesn't start till
intake duration is over 230@.050 in a BB.

AJ_92RS

Just an FYI, no flames ment.

A buddy of mine has the "502 Deluxe" crate motor (502HP/568TQ for those who don't know) in a 86 Monte SS and has that th200 bolted up to it. He's made a few passes at the track (I wasn't there so I don't know his ETs ).

It's held up fine SO FAR. That's all I can say as of now. I know that he hasn't had it 'built' to handle that power, but any time he's on the street, he babbies it.

I've heard that they handle a lot more power than people think. Plus they gotta a little closer gear ratio configuration than the
700-R4. Not as steep of a 1st gear for the street, but better for more consistent ETs.

AJ

E-Z Rollin

I've read several articles on 200 4R transmissions since I'm putting one in my V8 S-10 blazer project.It can be modified to handle about 370 lbs. ft. which limits it's use to mildly modified street machines. It does have some advantages over a 700 R4,easier fit in tight places,a better gear spread [less rpm drop]and a higher percentage of over drive. Also they are used in some really fast Grand Nationals,though they don't have the torque of a big block.

BTS88IROC

Troll - someone needs to take care of him.

Pro Built Automatics

I have several 2004R's behind big blocks from 454-502 ci. holding up fine, all with 9.5"-10" torque converters (lockup & non-lockup). As with the 700R4 the torque converter is one of the biggest things that need to be addressed to keep this transmission alive. I use the Trans-Go Shift kit along with the large boost valves, Trans-Go steel front pump rings, extra clutches in the 3rd & 4th pack, hardened stator, hardened sunshell, Gran National or Superior 2nd apply servo, extra wide 2nd gear band from Alto, etc. These units, when setup correctly are stronger, faster, & quicker than the 700R4. They come in all the bolt patterns BPO & Chevy. I give a one year warranty on these units, if I can help call me at 800 7763288 M-S 10-6 PST, or E-mail me at probuilt1@earthlink.net If you have a chance check out my website www.pro-built.net
Glad Too Help!!!

Torqomeo

OK so the 2004R will stand up to the strains of a mild street driven big block. How about the the bellhousing or something like that does that bolt up? It would be coming off a V8 G-bodied car. Do i have to get a different one?

AlkyIROC

My car has the 294 cam in it and isn't lumpy but then it idles at 1200 rpm also. Bigger engines can get away with bigger cams. Putting a good lumpy cam in a 327 will be mild in a 400.

I agree with Pro Built. Regardless of what tranny you use the only way to make it survive is to use good aftermarket parts. Also when using any converter with a higher stall than stock you should also install an aftermarket oil cooler. Excess heat will kill a tranny too.

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Follow my racing progress on Stephen's racing page
and check out the race car

87 IROC-Z SuperPro ET Bracket Race Car
461 naturally aspirated Big Block (times are for the current engine)

Best ET on a time slip: 11.447 altitude corrected to 10.99
Best MPH on a time slip: 119.42 altitude corrected to 124.86
Altitude corrected rear wheel HP: 493
Best 60 foot: 1.586

Racing at 3500 feet elevation with a typical race day over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley

fly89gta

iTrader: (1)

i would try to find a 2004r out of a 86-87 GN with the BFR code. A properly built 2004r will hold up well into the 10's...

One thing with this tranny, DON'T GET CHEAP WITH IT. Also, there is a GREAT GREAT GREAT write up on modding a 200-4r on www.turbobuick.com Go to the tranny board...its right at the top. Gives you a VERY detailed explanation of what to replace and what u can leave alone..hope that helps...let me know what u think of that article

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*89 Trans Am GTA
*Moderator at www.transamgta.com

To hell with the GM vs Ford war. We must unite, as brothers to fight the plague that is overtaking the world...RICE

Tony