I thought Khan hit it very well. Both will work fine. The ultra low gear of the 700-R4 is better for a low torque motor and not as good for say a stroker or a big block due to the torque. The second gear spread is less than ideal in a 700-R4 and the overdrive isn't as tall and its more money & work to get a driveshaft cut and get it installed as the 700-R4 never cam in a gbody. The 700-R4 is also a little heavier and less efficient but none of these things have to be a deal breaker. The 200-4R needs the billet forward drum if you have more than 500 foot pounds of torque especially if you are running slicks. I had good luck with the two 200-4Rs that I have had built at http://www.extremeautomatics.com One for behind my GN and the other behind a 509 ci 570 TQ 442. Both worked flawlessly for me. Even their Stage 1 includes the core so they can just ship it to your door and it comes with a 1 year warranty good to 500HP or 10.90 ETs. Here is some clips from the owner on their website site about it;
Q - Will the 2004R fit my application?
A - The 2004R can be installed in almost any GM application using Chevy, Buick, Olds, Pontiac and Caddilac Power plants that use the later Chevy or BOP mounting. The 2004R is an easy swap to replace 2 or 3 speed TH400, TH350, PG, TH200, TH250, yes even the 700R4.
The 2004R shares many of the same mounting points as the transmissions listed. When you install the 2004R the shift linkage, Transmission lines, converter mounting are the same as any other GM transmission. When replacing the TH350, TH200, TH250, 7004R in most cases the driveshaft can be reused. The transmission mount will require the cross member to be moved into the Th400 location and on most all GM intermediates the factory provided the mounting holes for you to move the cross member.
When replacing the TH400 the drive shaft length and yoke will need to be corrected. The cross member mounting area and the other points listed are the same.
The 2004R uses its own fill tube. None of the transmission Dip stick tubes listed will interchange. You must use a dipstick tube that was intended for the 2004R.
Q - Will the 2004R handle the HP of my engine?
A - The 2004R Will handle up to 1000HP in a street and strip application. If your HP level is above 1000HP and you have primarily a drag car that is used very little on the street. You should be looking at the 4L80E.
Q - 2004R or 700R4?
A - I have been asked this question more than any other. Straight answer some will not like. Honestly its not even a fair fight. The 2004R will handle power that far exceeds that of any 700R4 or 4L60 that can be build at any price. 2004R has a better gear ratio spread, better Overdrive ratio, will fit many more applications, Lighter, Stronger I can go on and on. The 700R4 is best left to applications where its the only option such as 4WD or All WD, tow vehicles, Lower HP applications or customers that are more concerned with budget v/s strength and reliability.
Lock Up Converter or Non - Lock up converter
If you are primarily street driving and lower RPM and best fuel economy are a concern then the Lock-up converter is probably for you. The lock-up will remove the additional slippage from the converter at cruise. The Lock-up will loose some WOT efficiency while unlocked.
If you are Limited Street do not take long trips and converter efficiency at WOT or at the track is more important to you then choose a NON-Lock converter. The right Non Lock converter will deliver the best performance and can be driven anywhere. The Non Lock will have additional slippage at part throttle cruise.
Extreme Automatics developed a VB (valvebody) 5 years ago we call the BRC. This VB was developed on the Answermatic VB Machine to duplicate the performance of the much desired and expensive Grand National BR VB. We are the only company who can duplicate the BR VB. That allows us to sell our 2004Rs out the door with no core required. We also have 30+ GM BRF & CZ cores in stock for those who want to exchange their transmission for the real GM version.
All Extreme Automatics 2004Rs
The build starts with only select cores
Case is media blasted and race preped
All bushing are replaced
All Torrington bearings are replaced
All thrust washers are replaced
All seals and gaskets are replaced
Harden stator installed in every unit
Carbon Band installed in every unit
Billet anchor pin installed in every unit
New Pump assembly installed in every unit
EA Hi Pressure regulator valve and spring
EA Hi RPM pump priming spring
Billet pump rings
Pump drains drilled
Pump bushing staked
Tensioned Teflon sealing rings are used
3 clutch OD
Tested and sealed center support
Race clearances
Re-Calibrated Valve Body for firm shifts
Stage 1 2004R Stock to 10.90 ET 500HP
All Items Listed Above Including
Harden Forward Drum Shaft
Billet Servo
HO Low Roller Clutch
New OD Roller Clutch
Hi Performance Calibrated Valve Body **BRC
7 clutch direct Multi Parallel
Lock up or Non Lock-up
Governor Calibrated for approx 5000 RPM shifts
10 Vane pump Rotor and Slide assembly
1 Year Warranty ( 90 days on Forward Clutch Drum)
$1495 + Shipping
Q - Will the 2004R fit my application?
A - The 2004R can be installed in almost any GM application using Chevy, Buick, Olds, Pontiac and Caddilac Power plants that use the later Chevy or BOP mounting. The 2004R is an easy swap to replace 2 or 3 speed TH400, TH350, PG, TH200, TH250, yes even the 700R4.
The 2004R shares many of the same mounting points as the transmissions listed. When you install the 2004R the shift linkage, Transmission lines, converter mounting are the same as any other GM transmission. When replacing the TH350, TH200, TH250, 7004R in most cases the driveshaft can be reused. The transmission mount will require the cross member to be moved into the Th400 location and on most all GM intermediates the factory provided the mounting holes for you to move the cross member.
When replacing the TH400 the drive shaft length and yoke will need to be corrected. The cross member mounting area and the other points listed are the same.
The 2004R uses its own fill tube. None of the transmission Dip stick tubes listed will interchange. You must use a dipstick tube that was intended for the 2004R.
Q - Will the 2004R handle the HP of my engine?
A - The 2004R Will handle up to 1000HP in a street and strip application. If your HP level is above 1000HP and you have primarily a drag car that is used very little on the street. You should be looking at the 4L80E.
Q - 2004R or 700R4?
A - I have been asked this question more than any other. Straight answer some will not like. Honestly its not even a fair fight. The 2004R will handle power that far exceeds that of any 700R4 or 4L60 that can be build at any price. 2004R has a better gear ratio spread, better Overdrive ratio, will fit many more applications, Lighter, Stronger I can go on and on. The 700R4 is best left to applications where its the only option such as 4WD or All WD, tow vehicles, Lower HP applications or customers that are more concerned with budget v/s strength and reliability.
Lock Up Converter or Non - Lock up converter
If you are primarily street driving and lower RPM and best fuel economy are a concern then the Lock-up converter is probably for you. The lock-up will remove the additional slippage from the converter at cruise. The Lock-up will loose some WOT efficiency while unlocked.
If you are Limited Street do not take long trips and converter efficiency at WOT or at the track is more important to you then choose a NON-Lock converter. The right Non Lock converter will deliver the best performance and can be driven anywhere. The Non Lock will have additional slippage at part throttle cruise.
Extreme Automatics developed a VB (valvebody) 5 years ago we call the BRC. This VB was developed on the Answermatic VB Machine to duplicate the performance of the much desired and expensive Grand National BR VB. We are the only company who can duplicate the BR VB. That allows us to sell our 2004Rs out the door with no core required. We also have 30+ GM BRF & CZ cores in stock for those who want to exchange their transmission for the real GM version.
All Extreme Automatics 2004Rs
The build starts with only select cores
Case is media blasted and race preped
All bushing are replaced
All Torrington bearings are replaced
All thrust washers are replaced
All seals and gaskets are replaced
Harden stator installed in every unit
Carbon Band installed in every unit
Billet anchor pin installed in every unit
New Pump assembly installed in every unit
EA Hi Pressure regulator valve and spring
EA Hi RPM pump priming spring
Billet pump rings
Pump drains drilled
Pump bushing staked
Tensioned Teflon sealing rings are used
3 clutch OD
Tested and sealed center support
Race clearances
Re-Calibrated Valve Body for firm shifts
Stage 1 2004R Stock to 10.90 ET 500HP
All Items Listed Above Including
Harden Forward Drum Shaft
Billet Servo
HO Low Roller Clutch
New OD Roller Clutch
Hi Performance Calibrated Valve Body **BRC
7 clutch direct Multi Parallel
Lock up or Non Lock-up
Governor Calibrated for approx 5000 RPM shifts
10 Vane pump Rotor and Slide assembly
1 Year Warranty ( 90 days on Forward Clutch Drum)
$1495 + Shipping
