Nobody makes replacement motor mounts for the '69 or 70 cars with 250's
But if they did, they would exactly like this set that my father in law pulled out of his '69 Mustang when he "upgraded" from a 250/3.03 to a 289/4spd (yes I am still annoyed at him, but at least I got the mounts)
250 mounts are the front set
'69 250 mounts on the top, an Oz 250 mount on the bottom (slightly grey/greenish)
Just look at how much more 'beef' there is in that 250 mount compared to this stock 200 frame/motor mount
I measured the setback once, I'll see if I can find the thread. If I can't find the thread, I'll re-measure them tonight.
Take a gander at this thread
250 Motor Mounts -- FordSix Forum
Forum Member "Econoline" posted the following picture, and you can see that the frame bracket hold down bolt is at least 1" rearward from the engine block mount bolts. Which would be pretty much what you said you had problems with.
Econoline":3c2hgf7y said:
Here are the
1970 Mustang 250 motor mounts I have.
Now my assumption (when I find my original measurements or when I get home) is that the stock 250 frame side brackets already have this difference built into them. So that when the motor is installed the bellhousing is virtually in the same location as a 200 or even a SBF. But when you were mixing and matching a stock 170/200 mount the offset worked against you.
Now if that is the case, you could still use the mounts I made, but you'd want to drill a second set of holes in them.
The big bracket that bolts to the engine has enough material that you could easily drill a hole 1" forward or rearward of the original/center mount holes.
Measurements for the 250 mounts are on this thread from eons ago (circa 2005)
Fitting the 250
coupeboy":3c2hgf7y said:
I need to get some more pics to help with this description.
Frame and Motor mount comparison
Parts compared
'67 Mustang
C7ZA-6037-A (frame mount)
C7ZA-6038-C (Blue*)
C7ZA-6038-H (Green)
'69 Mustang
C9ZA-6037-B (frame mount)
C9OA-6038-D (mount)
C9OZ-6038-B (also on mount)
Setup
I used a peice of 2 by 2 angle iron for the measuring jig. I started by drilling the lowest hole into the angle iron. I then put a bolt through the hole with the nut left lose so I could swing the assembly. I used the '67 frame and motor mount for the next step. I put a level along the motor side of the motor mount and when it was straight up and down I clamped it with a big pair of pliers and ran a drill down the hole that would be the farthest from the motor to mark the location. I then took the frame mount off the jig and drilled out the hole. After the holes were drilled I bolted teh frame mount to the jig and started measuring.
From the end of the jig to the horizontal motor mount face
'67 9.5
'69 9
With the motor mounts oriented as they would be while holding the motor
From the table to the center of the lowest motor bolt
'67 3 5/16
'69 3
I then tipped the jig over on its side and measured from the counter up to the center of the bolt hole that is closest to the jig.
'67 5 1/4
'69 4 3/4
So according to what I found, the '69 frame and motor mounts should lower the motor 5/16" lower, and they make and adjustment to allow for the wider block. The part that was interesting is the 1/2" setback. I noticed that the '69 frame mounts have oblonged holes in them for additional adjustments. I still need to make measurements for the bolt spacing where it bolts to the frame. You also have to allow for some slight miscalculation of measureing as I did it with a tape measure.