I have a 400 - 1973 engine that I want to load into a 1971 S6 body. Its been years since I took on this type of challenge. I would like to use the 904 trany but can't remember if they will work together. I have the motor apart now and starting the rebuild on the body. I need some help here... THANKS
Can 904 Trany fit 400 engine?
- Thread starter tayres1
- Start date
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mguner
How many is too many?
No. Not without milling off the bell housing and bolting on a special replacement. 904 = small block or slant 6. Both of those are also different.
I was correct then, I had a guy tell me that it would bolt up. I was looking for a 727 at the time. I figured that I will be changing the rear end too...LOL! I want to install a Dana but have not found the information on what WILL fit... Do you have any website that can help me with this information?
cu440da
Well-Known Member
Too make it a bit more complicated for you, the 727 comes in both SB and BB. Make sure you get the right one.
txstang84
Well-Known Member
use the search function in the trans/drivetrain section...it does work if you open up your search terms...
If you want a Dana in your Duster, unless you happen upon a hemi A car, you'll have to relocate the perches, and most likely crop the tubes to fit it. You looking to build up the 400 a good bit though? Dana's a bad *** rear for certain, but it's also heavy and very costly--can you use an 8 3/4 or possibly swap in a Ford 8.8? There's a few folks on here using them with measurable success.
If you want a Dana in your Duster, unless you happen upon a hemi A car, you'll have to relocate the perches, and most likely crop the tubes to fit it. You looking to build up the 400 a good bit though? Dana's a bad *** rear for certain, but it's also heavy and very costly--can you use an 8 3/4 or possibly swap in a Ford 8.8? There's a few folks on here using them with measurable success.
roccodart440
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An A Body Dana will fit.
A B Body Dana will fit but you'll need new wheels.
In all honesty just buy a new Dana. They weigh the same as a stock 8.75 if you have it cut to the minimum width that will fit in the car. The Tru-trac or S-trac is hard to beat as well. The price is very reasonable and comparable to a rehabbed stock 8.75.
txstang84
Well-Known Member
No kidding? How much for a new Dana? The ones I'd looked into were over $2k...I guess by that rationale, they are the same price as a disc to disc ready to bolt in 8 3/4...
mikedevore
Well-Known Member
The stocker & super stocker guys convert the internals of a 727 to 904, to take advantage of the less rotating weight.
moper
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FAST guys too.
roccodart440
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Mine was 3200ish.
take a 8.75 and .....
new straps
Paint
oil
Big bolt axles
Posi replace or rebuild
gears of your choice
brakes
Let me know where you end up when you ad that to the going rate of about 1,000 for a 8 3/4.
txstang84
Well-Known Member
...glad I got a better deal for my pieced together 8 3/4 (s).
With what I paid and prices I know I can nail down, I'd be sitting just shy of $2k for a fully assembled 8 3/4, new disc to disc kit, rebuilt SG, new gears, dr diff axles, paint, and lube. The only variable I don't know off the cuff is the assembly of the pig itself with the new parts...so I'll toss in an extra $200...friend discount...
With what I paid and prices I know I can nail down, I'd be sitting just shy of $2k for a fully assembled 8 3/4, new disc to disc kit, rebuilt SG, new gears, dr diff axles, paint, and lube. The only variable I don't know off the cuff is the assembly of the pig itself with the new parts...so I'll toss in an extra $200...friend discount...
Bakerlite
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I've got an E body 8 3/4 diff with an open center and to honest it's just cheaper for me to modify a 31 spline Ford 9 inch and fit it to the car , than it is to try and get an LSD for it..Second hand LSD centers are just ridiculous money for me to obtain these days.
I had a friend tell me about a 72 Cuda that was in a junk yard near here, He thinks that the rear end is still under it. I found a rear end in a 70 Hemi Charger in the same junk yard and felt sorry for the car, valve covers were not there and the car was rust totally away (no trany).
I will need to find out what 727 trany that I will need for that 400!
I will need to find out what 727 trany that I will need for that 400!
txstang84
Well-Known Member
You mean for your '71 Duster? Have you checked the classifieds? Or possibly craigslist near your local area?
Check out Tony DeFeo...(whitepunkonnitro)
I just saw one under his name a few minutes ago...Lee Robinson is another good one...
Check out Tony DeFeo...(whitepunkonnitro)
I just saw one under his name a few minutes ago...Lee Robinson is another good one...
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