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Old May 8, 2005 | 01:13 PM
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Default Motor mounts

Looking for poly motor mounts, I think the good ones are Energy Suspension ? Or is there a better one ?

Anyone have the part number for 1980 Corvette small block ?
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Old May 8, 2005 | 02:38 PM
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The Energy Suspension are a far better design than original. The structure make it impossible to seperate like original. 3 years ago I installed them and they are holding great.

Don't have the part number though.

Stephan
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Old May 8, 2005 | 03:00 PM
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i got mine at autozone .it took some time to put them in but they have worked out fine .
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Old May 8, 2005 | 03:28 PM
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I ordered my Energy Suspension Motor & Transmission Mount Kit from Summit. ~$70 USD.
Part Number ENS-3-1120R
http://store.summitracing.com/defaul...=egnsearch.asp

If you have any noticable engine vibration using rubber mounts, you might notice them even more after installing the polyurethane mounts.
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Old May 8, 2005 | 03:37 PM
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They can be a PITA to install, mine sure were..and I'm probably going to swap to solids. Oh and the plating on the ES stuff sucks also, I had them completely replated by my favorite local plating plant...they do a great job all the time.
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Old May 8, 2005 | 05:18 PM
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Why are they hard to install, are they not the same as original only made of poly instead of rubber ?
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Old May 8, 2005 | 05:20 PM
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Mine are a tight fit and I had to loosen up the bolts in the block to get the ears to go over the hole in the frame mount, it was the only way. My frame is not bent, it's perfectly straight and the stock moutns bolted up jsut fine. Must be in the design of the mounts.

Last edited by Twin_Turbo; May 8, 2005 at 05:42 PM.
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Old May 8, 2005 | 05:22 PM
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I have the ES on my Big Block and went in without effort. MUCH better thahn the solid mounts I had.
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Old May 8, 2005 | 05:30 PM
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i found that the bolt holes was so tight that they had no play i opened the holes one size, gave me enough movement to bolt right in
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Old May 8, 2005 | 05:42 PM
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anyone know the proper part # for solids (or has some for sale???)
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Old May 8, 2005 | 06:44 PM
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I think I have Prothane? poly mounts. Fit fine. I was just looking at them yesterday when attaching to the 383 block and I can not remember. Old age. Will check later this evening and let you know.
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Old May 8, 2005 | 07:19 PM
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I have the ES ones in my car. They were not a problem to install at all. Little more vibration than stock but not as harsh as solids.
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Old May 8, 2005 | 09:40 PM
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I installed the ES mounts recently in my 72. Seperated the "ears" of the mounts a bit in the vise with an adjustable wrench, to ease installation. For some reason, the driver side was a bit of a pain to line up, but the pass side lined right up.

I also installed the trans mount. Others have stated that this is taller than the stock rubber mount, which is true. I installed it without the flat metal "pre-tensioner" plate to minimize the height difference. The exhaust mount bracket should supply the "pre-tension" that is needed.

Vibration is increased a bit after installation, but at least the air cleaner isn't hitting the hood anymore.
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Old May 8, 2005 | 10:30 PM
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Wayne, I just put ES motor and tranny mounts on my car. Fit was great. I had purchased made overseas crap before and could not get them to go on.

Canadian Tire sells them. $56 + taxes for one motor mount, $39 for tranny. Or you can buy a kit (2 motor mounts + tranny) for only $121+ tax.

I will mail you the number later...
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Old May 8, 2005 | 11:02 PM
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Crappy tire sells them...wow I don't have to go to another country for a part ?
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Old May 9, 2005 | 12:58 PM
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On a related issue, I remember a recent thread in which someone said Corvette motor mounts were different than stock chevy mounts, ie shorter. If this is true can hood clearance be increased with useing stock mounts specifically built for a C3 corvette?? Another thought, does someone make a non specific short mount??
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