904 trans buildup

[Ck[FIN]]

I am building 904 trans for my friends street/strip car. Its has small block with somewhere around 500horsepower. I know it is lot for small trans but what kind of parts do i need to make it hold. How many clutches in front drum? What kind of shift kit or valve body? Good band of course.

What else, all tips are welcome. 
Is there needle bearing kit available for 904?

[djwhog]

I could go into all the details, but you should call ohn Cope at Cope transmissions. He is a mopar performance trans guy.
 

[tactransman]

Sauli,what is it going in? Weight of the vehicle makes a difference. I did a HD 904 with a rigid 2nd gear band and 5 high gear clutches-manual VB for a '69 'cuda about 2 years ago that was running I think mid 11's in the 1/4 mile and it is still going today.

[Road_Runner]

Sauli,what is it going in? Weight of the vehicle makes a difference. I did a HD 904 with a rigid 2nd gear band and 5 high gear clutches-manual VB for a '69 'cuda about 2 years ago that was running I think mid 11's in the 1/4 mile and it is still going today.

I soooo wish you were nearby.  If you hear of a reputable Mopar trans guy in or around Atlanta please let me know.

Thanks, Jim

[Ck[FIN]]

Sauli,what is it going in? Weight of the vehicle makes a difference. I did a HD 904 with a rigid 2nd gear band and 5 high gear clutches-manual VB for a '69 'cuda about 2 years ago that was running I think mid 11's in the 1/4 mile and it is still going today.

Hi Terry, It is going to an A-body which weights about 3050lbs with driver. I have built many racing 727 transmissions and also wrote a thesis about it but never 904 for racing.

Is that all what i need,

Race VB
Rigid band 2nd gear
5 high gear clutches (red + kolene steel), do they fit in stock drum?
Kickdown lever?

Any problems if engine revs to 7500rpm?

[Ck[FIN]]

Hi Terry, It is going to an A-body which weights about 3050lbs with driver. I have built many racing 727 transmissions and also wrote a thesis about it but never 904 for racing.

Is that all what i need,

Race VB
Rigid band 2nd gear
5 high gear clutches (red + kolene steel), do they fit in stock drum?
Kickdown lever?

Any problems if engine revs to 7500rpm?

Any help to these questions? Terry or someone else? 

[tactransman]

That should do it. Make sure you use a LBA VB.