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429 Bloc plates or brackets, was [Frame Perches ]


Wilco549
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Let me know what you have (Private MSG please) with shipping to 37743. I need the lower sitting convertible frame perches (Engine Mounts).  

 

I need the 429 brackets that attach to the block. [block plates] 

Block_Mount6.jpg

 

 

 

Also, I have parts to trade if you need something for your build.

 

Tim

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I would probably go with new ones since original motor mounts rubber could be bad. Mustangs Unlimited sells LH and RH for $18.95 each for 71-72.  I had my original motor mounts chromed a long time ago, they still look good but I don't know if the rubber insulators are bad. Just my 2 cents.

71-73 Mustangs never die, they just go faster!

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71-72. I'm not looking for the rubber mounts. I need the frame perches, supposedly they allow the engine to sit 1/2" lower (any V8) for convertible? I cant verify that.

 

Also looking for 429/460 engine mounting brackets that the rubber mounts attach to on the block. I can buy them new for about 130.........but I'm cheap!

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The small block frame mounts ( Perches) are the same for all 71 to 72 years. The 71-72 frame mounts are taller than the 73 mounts, because in 73 ford went to a captive motor mount design to meet Fed. Regulations. The new 73 captive motor mounts are taller and therefore required a lower frame mount or perch. Original 73 captive mounts are hard to find, so many 73 car owners swap both the frame and motor mounts for the 71-72 style because they are easier and cheaper to get. I've seen cars with mismatched sets ie 72 motor mounts and 73 frame mounts and the engine does not sit right.

 

Also I have heard that there are slight height differences between the coupe/fastback and convertible small block motor mounts but not the perch. Lowering the engine at the motor mount would tilt the trans tail up slightly and help the clearance with the convertible tunnel reinforcement plate, but it may cause contact with the fan shroud.

 

Big Block mounts different.

1973 H Code Convertible - Medium Copper Metallic - June 8, 1973, Built Ford Marketing Sales Vehicle

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satellite.png Proud Space Junk Award Winner!

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Let me know what you have (Private MSG please) with shipping to 37743. I need the lower sitting convertible frame perches (Engine Mounts). 

 

Also, I have parts to trade if you need something for your build.

 

Tim

 

Tim, I think I have a set

I will look later today or this weekend

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OK, I'm confused now. I'm putting a 429 in a 351C car. The 429 mounts on the engine are 1pc each side , 3 bolts to engine requiring 4 1/2" perch width. The perches on the car are 3 1/2" wide which I believe require the 2pc mounts that attach to block with only two bolts. The service manual is not clear [to me] as to which is correct. I look up MM's on the part site rockauto and it shows the wider, 3 bolt mounts are correct. Do I need new, wider perches for the 429?

 

Help!

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Wilco,

I did that swap a few years ago also. The mounts you need are the two piece models. I know Rockauto and some others sell one piece mounts used on LTD's & Torinos and they will work on our cars, but it puts the motor lower in the chassis and makes add'l clearance issues for exhaust, manifolds, headers, etc. Take a look at "Crites Performance Parts" website and Mustangs Unlimited and they both sell a kits / parts needed. I was able to obtain used 429 frame perches and new (2) piece motor mounts from our vendors for my car.....

Thanks, Jay

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Looking at this today on my long stalled 73 Fastback with 460.

 

First grungy pic is 351c stock upper and lower engine mounts still hanging on the Cleveland.

 

Second pic of 460 on stand intended to go in 62-65 Fairlane (another stalled project..), with Crites 460 into Fairlane conversion motor mounts.

 

Third pic is what is on the 460 in my 73 now. IDR if I got 429 lower frame mounts and bought a 429 engine side mount (or even if frame side mounts were 429, or what...), but the upper mount is actually two pieces.  So, for whatever it's worth as an example, 3 pieces for mounts on each side of mine..

 

 

image.jpg

 

image.jpg

 

image.jpg

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Looking at this today on my long stalled 73 Fastback with 460.

 

First grungy pic is 351c stock upper and lower engine mounts still hanging on the Cleveland.

 

Second pic of 460 on stand intended to go in 62-65 Fairlane (another stalled project..), with Crites 460 into Fairlane conversion motor mounts.

 

Third pic is what is on the 460 in my 73 now. IDR if I got 429 lower frame mounts and bought a 429 engine side mount (or even if frame side mounts were 429, or what...), but the upper mount is actually two pieces.  So, for whatever it's worth as an example, 3 pieces for mounts on each side of mine..

 

 

image.jpg

 

image.jpg

 

image.jpg

 

Thanks! I've updated the original post with what I really need. :D

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  • 1 year later...

Don, I'm pretty sure those FE Mounts will not work on the 385 series 429-460 engine.

 

Sent from my VS986 using Tapatalk

 

you are correct.  I just purchased them and they do not fit.  need to return them this week.

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Links to all three 429 motor mount components from Mustangs Unlimited in the following post.

 

https://www.7173mustangs.com/thread-71-coupe-460-t56?pid=321437#pid321437

 

HTH

73 conv. 460, D0VE large valve heads, Performer RPM manifold, Voodoo 227/233 cam, Holley 950 HP carb, C6 trans, 3.25 trak-loc.

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