transmission ID

Ed · Post by Ed » Tue Jul 01, 14 10:19 pm

the engine and transmission in my coronet are not the originals. I have almost certainly identified the motor as a 1978 440 but I haven't found anything out about the tranny.
The previous owner said it used to have a 727(?) in it but it started slipping in 3rd or something, so I also have that as a spare as he let me have it.
But he didn't tell me what the replacement was.

here is a picture of the numbers stamped by the sump pan

any info or links to a website much appreciated.

Mossy68 · Post by **Mossy68** » Tue Jul 01, 14 10:32 pm

Looks to be a 727 number ?
Have you tried a de coder site on line ?

Ed · Post by Ed » Tue Jul 01, 14 11:03 pm

I did look but found lots of sites and numbers that I couldn't make much sense of..

Pete · Post by **Pete** » Tue Jul 01, 14 11:07 pm

The best way is to ID the shape of the pan and there are plenty of diagrams on the web - it is most likely to be a &27 - is it a push button or later cable type?

We are not a million miles away from you in South Cambridge...

Mossy68 · Post by **Mossy68** » Tue Jul 01, 14 11:09 pm

Had a quick search and I reckon its a 727 from a B or C body. Not sure on year.
Duncan Watts on here is our gearbox guru
Rebuilds , upgrades , whatever you need.
At least it looks as though you have the correct box to handle the 440

Mossy68 · Post by **Mossy68** » Tue Jul 01, 14 11:22 pm

Pete wrote:The best way is to ID the shape of the pan and there are plenty of diagrams on the web - it is most likely to be a &27 - is it a push button or later cable type?

We are not a million miles away from you in South Cambridge...

Would a 440 car have been fitted with a 904 Pete ??

Pete · Post by **Pete** » Tue Jul 01, 14 11:26 pm

I have never heard of it...not Big Block; Small block: Yes...

Mossy68 · Post by **Mossy68** » Tue Jul 01, 14 11:29 pm

Pete wrote:I have never heard of it...not Big Block; Small block: Yes...

Ta. Thought so.
I knew that 727,s came in big and small block fitment. Was unsure on 904's

Ed · Post by Ed » Tue Jul 01, 14 11:32 pm

hopefully it will stand up to what I would like to do

Forgot to mention it has a floor mounted shifter rather than on the column as the original. no idea about cables or buttons yet?

here is a picture I took of the only website I found with part of the number on it.2801541.
totally forgot about it and cant remember what website it came from.

Ed · Post by Ed » Tue Jul 01, 14 11:35 pm

would a 904 fit on a big block? (these are only numbers to me at the minute, im still learning!)
I ask this because I believe the car was originally a 318..

DaveBishop · Post by **DaveBishop** » Wed Jul 02, 14 5:59 am

904's only came with small block and six pots

Dave-R · Post by **Dave-R** » Wed Jul 02, 14 9:05 am

The bolt pattern to fix a trans to an engine is different for big block and small block. (B/RB and LA).

So it is physically not possible to bolt a 904 to a big block.