Any of you that watch thread authors may remember that, when my y-block went south, I started on a SBF (302) course, and then changed course to re-use the old y-block.

The problem is I don't really love the old t-98, can't find a good/easy alternative (given my skill set).

I'm thinking the SBF/AOD might be easier for me, than trying to run a more modern transmission behind the 292.

Anyway, I just found an old 1987 F250 being parted out. It has a 351/Automatic in it. Owner doesn't know much else. From what I've read, I think the 351 must be a "W" (as opposed to C or M). Is there a relatively easy way to tell for sure?

Anyone know what the automatic transmission might be. From what I've seen it could be 3 or 4 speed. Any chance it has overdrive? I'm mostly interested in the 351, but it would be cool if the trans worked too.

 

Ask if it has 14 bolts on the transmission oil pan. If it has 14 bolts its a AOD

 

There seem to be a lot of of options on adapter plates for your YBlock to AOD or other ford trans. They are pricy though....

 

I feel your struggle. i'm making my plan to replace the engine and trans in my 54. I'm up to 5 possible paths. Good luck on your quest.

 

Yep. They are pricey, add that to a pricey build in the first place (rebuilding the y-block is far from inexpensive), and it starts to sway my opinion. Also, some of the adapter plates I found seemed to require that I fabricate a dust cover, or something like that (not 100% certain of that)

 

6 bolts on the windsor valve cover

8 bolts on the modified valve cover

Modifieds stop being used sometime around 1980

 

Its most likely a 351w given the year, Check the transmission pan, if it has METRIC stamped into it, its an AOD.

 

According to the internet as found by Google (always trustworthy, I know...) you can get your Y-block truck bell housing modified to fit a T-5 for a reasonable cost by these folks:
link

 

Cool. Two questions relative to T5 (if you know) how tough is it to connect our clutch pedals to a T5, are they mechanical or hydraulic? This is where I start to worry about fabrication...

Perhaps more importantly. I want to keep my bench seat. I've a budddy who says he can fabricate a shifter that will run forward close to the floor, from the standard ford T5 tail, and then run up in about the same place my T-98 shifter is.... so that my wife could sit in the bench seat next to me... as long as she keeps her feet off the shifter at her feet. Anyone seen someone try this? He's basing this off his experience making a T5 work in his little cobra kit car.

 

The clutch linkage between the pedal and the bell housing would be stock with that modified bell.

There are seemingly hundreds of T-5 variations. My guess for the most friendly combination for ease of installation and comfortable driving is a 2.95 first gear / 0.7 overdrive fifth gear Ford gear set in whatever case matches the modified bell housing, with an S-10 tail housing.

 

Adding to c91x input on the W vs C...the Cleveland engine has the water outlet cast into the engine block and points straight up. The Windsor engine has the water outlet cast into the intake manifold and points at the radiator. The options for trannies would be an AOD, a C6 or possibly an FMX...not likely you have a C4. Pics always help

 

To further clarify, 351M production ran from 1975 to 1982. If it's a 351 and original to the truck, it's the 351 Windsor. It would be a major undertaking to swap in a M, (nearly everything connecting to them is different) and no one in their right mind would ever do that.

 

just google ford transmission pans and you will get the shape of all the automatics.

 

I really doubt a 87 F250 would be an AOD. I've never seen an AOD in a F250. I'm pretty sure the AOD's were only in fullsize Broncos and F150's, when it comes to trucks.

I'm about 90% sure a 87 F250 auto would be the 3spd C6 ( No OD ) . If the truck is still together the easiest way to tell is look at the shift indicator in the gauge cluster. If the shift indicator read "PRND21", it's a C6. If the D has a circle around it then it's an OD transmission.

The F250 OD auto would be E4OD. But I don't think that was available until somewhere in the 89-91 area.

I'm pretty sure the 351 Windsor HO 4V carbed engine was the only 351 available in the 87 F250.

 

when would those 351s be roller motors. my 87 f250 had a 460 and c6, it got 4 mpg with a cabover camper and towing a jeep, ouch!

A SBF with overdrive will be nice to drive.

A HO 5.0 will put out more HP than the truck 351w but swap heads and cam and that truck 351 will put out some power.