Engine mounts failing, Help!!!

Hi everybody. Let me explain what I have. 1961 Econo van 3 speed manual with a 9" rear with I believe a 304 to 1 ratio. Just installed a fairly fresh rebuilt 200 from a 67 mustang, bored 30 or 40 over. Electric Fan, 130 amp alt. Wanted to replace the old hardened motor mounts with new ones. As far as I know the 144 mounts should also fit the 200. Ordered new mounts from Macs, brand name Auto Extra. Noticed that the mounting holes for block sat 3/8" higher than the originals. Not knowing but thinking this might create a problem with tranny clearance I ordered another set from Advance Auto, brand name Anchor. They were exactly the same, right down to the number stamped on it as the ones from Macs. I may have mixed them up but that shouldn't matter so I grabbed 2 of them and installed them. About half hour later, still on the lift working on other things I noticed the engine looked crooked. Here the passenger side mount failed, the metal separated from the rubber and sank down. What the heck!!!!! So I grabbed another one and replaced it. Seemed to be ok. Returned the bad one and the other one that I thought was the pair to that one back to Advance. Finished up some wireing for the fan and alt. Had gone on vacation for 2 weeks to CO. While the van remained on the lift until I returned. Finished the dog box lid insulation by 1:00 am sat. Mourning. got some sleep and drove it to work for the maiden voyage test run. Came home only to find the passenger side failed again. Now I'm getting a little frustrated. Called Macs and asked for my money back. Ordered another set from Auto Zone, manufacturer was Delco. These also looked exactly the same as the other sets with the same number stamped on. Installed them on Thursday night. Drove to work Friday, came home, went to a cruise in at a diner. Woke up this mourning, did a slight timing adjustment, went for a test drive, parked it to check the timing again after feeling a slight vibration only to find both mounts failed. What the heck is going on here. Am I missing something here or are all of these motor mounts JUNK from China or something. None of them lasted even 50 miles. The inner metal part that bolts to the block keep separating from the rubber that it's supposed to be bonded to. Does anyone know were I can find a good reliable set of motor mounts or an alternative? PLEASE HELP!!!  ( Bryan) Oh by the way, also replaced gas tank with a 69 mustang 20 gallon tank which I had altered to fit and rebuilt the heater controll valve with a rebuild kit from Napa which consisted of an $8.00 rubber part for the valve. Both are working fine.

China, my friend. Check ebay for OEM or some aftermarket that was made before we became a Third World country.

I would assume NOS rubber parts might be hard with age though.? Does anyone have an idea why my mounts might be failing? The dog box is fully insulated with 3/8" foam with foil. It does get hot in there but the electric fan seems to be doing its job. It's also hooked to full time power so it runs after its shut off until it cools down. I don't have an actual degreed gauge hooked up yet but  seems to be working as it should, no boiling over. I realize the block gets hot and might be transferring some heat to the upper motor mount bracket but you would think metal to rubber bonding shold be made to withstand at least that much heat. Or Not? A 200 shouldn't weigh much more than a 144 or 170 right? Any one have any thoughts? I may have to take a faild mount and do some fabricating I don't know. Or use my old hard ones.

I have a knocking sound myself in the area of the motor mounts on my 200, and I have two from MACs that are about five years old, so I may be in the same boat as you.  

I really doubt you have anything to do with the failures: They're just Chinese garbage.  Have you ever tried Chinese brake rotors?  I've gone through five to get one that wasn't pre-warped.  It's like buying rebuild carburetors in the '70's...  are you old enough to remember that paragon of automotive part excellence?

In the threads below, it says that the 61-64 mounts were right angle mounts and were different than the 64-67 mounts. They also list the numbers for the later ones as ANCHOR 2225 and 2226 mounts. Are these the ones you purchased? Thinking that maybe you purchased the ones for the later model. If you use the search tab and type in "mounts", maybe you'll be able to find more information on what you're looking for. Hope this helps...

https://vintage-vans.forumotion.com/t50545-motor-mounts?highlight=mounts

https://vintage-vans.forumotion.com/t53304-need-source-for-motor-mounts?highlight=mounts

https://vintage-vans.forumotion.com/t54198-difference-between-motor-mounts-automatic-manual-transmission?highlight=mounts

Well I was born in 65 so I didn't get to mess around with cars until about 1980.
And yes I have the right angle mounts, part # 2170. Although they don't make them exactly like the originals. The reproduction ones have the block mounting holes set 3/8" higher than the originals ones, or maybe my original ones sank down 3/8" over the years but are still intact. I called Anchor, who distributes these mounts to duralast and probably auto extra also, to talk to there tech guy, left a message but no response yet.

Let us know what he has to say...Thanks

Any pics of the mounts? I don't know the numbers offhand, but have the same set up as you and can tell you from eye ball if they are right.

Old mount on left. You can see in second pic the metal separating from the rubber.

Hope you don't mind, I just reimported your pics at 640 Pixel setting and eliminated the double pic...Vanny

Hope you can see them ok I have trouble figuring out how to load them.

You're not crazy. I'm going through the same thing with the later style mounts. Noticed a vibration, engine cocked to the passengers side etc. What I've noticed with the later ones is that there are definitely two versions. One with a wide groove and one without, I'm going to try the wide groove version b/c the others have failed, passenger side first. Chinese knock off garbage. With the earlier U shaped ones you may be s o l b/c those aren't shared like the falcon style mounts are used in falcons 65-67 econos, mustangs and so on so hopefully there has to be a good version...... or not.

You are correct, those are two different parts I think. The wider U in the front is the correct one and looks like mine which have been fine.

Thanks Vanny, I had sent pics to Anchor industry's of the bad mounts and the tech guy said he would have his engineers look at them and try to figure out what's wrong. He led me to believe that they make them here in the US. All three sets I went through came from Anchor, just sold under a different brand name. I'm going to take two of the bad ones and try to fabricate something with them, like I had to do with so many other parts. I will let you guys know what I did and how it worked out.