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Discussion Starter #1
I just bought some new motor mounts. They are the stud type (non-hipo). One of them has a thicker rubber pad than the other. The one that is marked and numbered for the left side, has a rubber insulator that is thinner. Is this correct?

Thanks

65 FB "J" 302 lots of mods. 94 GT K&N only.
http://albums.photopoint.com/j/view?u=1590489&a=12113030&p=43871256.jpg
 

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Joe: I think that is correct, however, why do you want to use the old-style insulators? They are notorious for failing. If your 302 is putting out any kind of serious hp, I'd use 66 'ear type' insulators. An added benefit is that they give you a little bit better clearance for headers on each side.

Glenn Morgan 66 GT Fastback 351w+toploader
 

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There is a right and left side. I don't think I have seen a set that
has one that is thicker. If it isn't a lot thicker it will work fine.
Could be a production difference. If you do decide to go with
the '66 type mounts, I need a set of the early mounts. Mainly
The brackets that go from the frame to the motor mount.
Give me a E if you change your mind. [email protected]
Good Luck!
 

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I agree with mrgem.. go witht the 66 style. I had to replace my 65 style twice..they kept failing. I now have the 66 style and all is good. My motor puts out more than stock and the 65 style would not hold the torque of the engine.

http://albums.photopoint.com/j/View?u=1582904&a=12044467&p=43545944.jpg
Chris Hunter
65 A-Code Convertible
 

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No the rubber should be about the same thickness although you may find small differences in thickness from different aftermarket companies. If one of them is fairly thinner it sounds like you may have gotten an old used motor mount. The rubber will compress over time and loose some of its rebound.

I drag race a 350 horse 289 with 3000 stall with these same motor mounts. After busting 3 pairs I bolted the mount and bracket together and then drill pressed a good sized hole through the mount and the bracket. A grade 8 with a loctited nut went through the hole. They hold great now, LOL.



You can see my 65 fastback at: http://hottarod.stangnet.com/
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Discussion Starter #6
Thanks for the input guys. Putting 66 mounts on is on my to-do list. But, at $125 a pair and another 35 for the insulators,
it will have to wait. I'm going to look at another pair of the
insulators today to see if there is any difference in thickness.
Seems if I remember correctly, the ones I took off 2 years
ago were differenct in that regard.

65 FB "J" 302 lots of mods. 94 GT K&N only.
http://albums.photopoint.com/j/view?u=1590489&a=12113030&p=43871256.jpg
 

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Discussion Starter #8
I might be able to scan a picture of the "ear type" out of a catalog and send it to you. Otherwise, the early 65 uses an insulator with a stud. The late 65 and up use a hipo type of mount, that has a bolt thru setup between the insulator and the body bracket.

I have just located a set of the "ear type" brackets near me. I'll be checking them out on Monday. Guy says he would trade me maybe.

How much will these ear types raise things?

65 FB "J" 302 lots of mods. 94 GT K&N only.
http://albums.photopoint.com/j/view?u=1590489&a=12113030&p=43871256.jpg
 

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The early style insulators use a single stud to bolt to the engine. The 66-up style have 'ears' or tabs that positively locate and support the interface between engine and mounts. The early style used a cast mount (not the insulator) and 66-up used a stamped, hd sheet metal unit.

Glenn Morgan 66 GT Fastback 351w+toploader
 

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Discussion Starter #11
That is the early style. With that setup, you will be attaching to a cast iron bracket at the bottom of the shock tower. Is one of those rubber pads thicker than the other? Can you tell me in the picture which one is the driver side?

65 FB "J" 302 lots of mods. 94 GT K&N only.
http://albums.photopoint.com/j/view?u=1590489&a=12113030&p=43871256.jpg<P ID="edit"><FONT SIZE=-1>Edited by mstngjoe on 03/29/01 07:32 AM (server time).</FONT></P>
 

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They'll raise the engine almost 1/2". Does wonders for header-to-shock-tower clearance. Some people may have hood clearance problems if they run a really hi-rise intake and a tall air cleaner, but most will not.

Glenn Morgan 66 GT Fastback 351w+toploader
 
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