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Discussion Starter · #1 ·
Looking to replace the stock 5.0 motor mounts on my 93 SC (w/ 347 conversion) with a pair of solid mounts, because the stock mounts allow too much movement under a load.

Does anyone know where I can buy them or what year Mustang would use the same mounts ?

Thanks, David
 

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david, get in touch with blown306 jeff has solids on his 306.
 

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I made my solid mounts.
 

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Discussion Starter · #5 ·
Blown306 said:
I made my solid mounts.
Interested in making more or in sharing info so I can make mine own ?

David

PS: Has anyone just reworked the stock mounts to be solid by welding them ?
 

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That's what I did. I used a piece of pipe 3/8" thick by 3" in diameter and cut it to length. I also added a grade 8 bolt to go through the upper and lower plates. Put them together loosely and install in car. Before putting all the weight on them, make sure the pipe is centered where you want it. Add the full engine weight and tighten down the thru-bolts. Then remove the mounts and weld them up. They'll tear out of the block or k-member before they break.

The hardest part is making sure everything lines up correctly after you weld them. I didn't weld all the way around, only a few inches on each side, top and bottom.

 

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Discussion Starter · #7 ·
Thanks for the info.

David
 

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I was also considering making my own solid mounts. Would it be ok to make just one side solid ?? I believe the passenger side compresses and the driver's side lifts .. so it would be better to make the passenger side solid and leave the driver's stock for a little vibration dampening ? Or is it recommended to make them both solid ?

- Dan
 

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Discussion Starter · #10 ·
teal944.6 said:
Take a look at these. I think this might be what youre looking for. I guarantee you wont break these.

www.thunderbirdperformance.net

Will those fit a 5.0 MN12 ? If so please PM me with more pictures, price and avalibility.

David
 

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Those are shiney....but steel is real.
 

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Discussion Starter · #12 ·
Blown306 said:
That's what I did. I used a piece of pipe 3/8" thick by 3" in diameter and cut it to length. I also added a grade 8 bolt to go through the upper and lower plates. Put them together loosely and install in car. Before putting all the weight on them, make sure the pipe is centered where you want it. Add the full engine weight and tighten down the thru-bolts. Then remove the mounts and weld them up. They'll tear out of the block or k-member before they break.

The hardest part is making sure everything lines up correctly after you weld them. I didn't weld all the way around, only a few inches on each side, top and bottom.


I'm making a set of "bolt in" steel mounts where I work, but I need to know the aprox height of the perch that the bottom of the mount bolts to, so I can provide enough clearance.

I don't have the old mounts off the car so I can get a measurement.

Here is another picture with a mount bolted on to the lower bracket....perch looks to be about 5/8" tall, but I would like someone to measure a bracket if possible.



Thanks, David
 

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Discussion Starter · #13 ·
Had these made at work yesterday. After bolting into place, I'm planning to skip weld the bottom edge to the lower mount bracket.



David
 

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teal944.6 said:
Are they solid all the way through?
No, look at the sketch they're sitting on. Interesting design, actually. Good job.
 

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Discussion Starter · #17 ·
icantdrive55 said:
My drivers mount is broken and can't be measured. What was the exact length of the mount?
I measured a new set of stock mounts and they were right at 2-9/16" tall (mounting surface to mounting surface). The solid mounts I made are a bit longer than stock because I had to elevate the motor for more oil pan clearance.

To determine what length to make a solid mount add 2-9/16" plus the height of the perch on the lower mount bracket. Unlike the stock mounts, you don't want the weight of the motor resting on the perch, it needs to be resting on the top of the main area of the lower bracket. That's why the plate on the bottom of the steel mounts I made are recessed. I just took a guess and assumed the perch would be about 5/8" tall and recessed the lower plate 3/4" to provide a little extra clearance from the perch.

Assuming my 5/8" height for the perch is correct...overall length for a stock mount replacement would be right about 3-3/16". Please note: I haven't installed these mounts yet to verify the height is correct.

David
 
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