Motor mount application list - Page 3 - ClassicOldsmobile.com

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Motor mount application list

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Old January 9th, 2015, 10:39 AM
  #81  
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it was a 6 cylinder car which is actually irrelevant because i bought it without anything on the frame.
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Old January 30th, 2015, 01:12 PM
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Originally Posted by joe_padavano View Post
Actually, the frame-side mounts are bolted to the frame, not riveted.



This is why I suggested the Chevy clamshell mounts. These put the rubber on the frame side, and since the rubber does deteriorate, replacements are readily available. Anchor P/N 2387 are used on the 403 Trans Am as well as on a bazillion Chevy applications,


The 403 block-side brackets to mate with these are also pretty readily available. People who are pulling the 403s out of their Pontiacs sell them all the time on ebay, and reproductions are also available.

joe,

this is a two piece correct? is the straight bar required to be used? or can just the piece that cross bolts to the frame mount be used?

Last edited by naphtali5725; March 4th, 2015 at 06:21 AM.
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Old January 30th, 2015, 01:17 PM
  #83  
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Originally Posted by naphtali5725 View Post
joe,

this is a two piece correct? is the straight bar required to be used? or can just the piece that cross bolts to the frame mount be used?
Yes and yes. The straight bar bolts to the three motor mount bolt holes in the Olds block and has two studs that the U-shaped bracket bolts to. There's no other way to attache the U-bracket to the block.
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Old January 30th, 2015, 01:32 PM
  #84  
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Originally Posted by joe_padavano View Post
Yes and yes. The straight bar bolts to the three motor mount bolt holes in the Olds block and has two studs that the U-shaped bracket bolts to. There's no other way to attache the U-bracket to the block.
Thanks joe!
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Old January 30th, 2015, 05:39 PM
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one more thing, are those mounts available other than on ebay/junk yard?
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Old January 31st, 2015, 05:58 AM
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Great thread! Thanks to Joe. I know this has been brought up before. But I can't find good quality mounts. My 71 Cutlass 350 had sagged so much the oil pan hit on the crossmember. My 70 Vista 350 had a small aftermarket flex fan on it when I bought it and when I attempted to put the original factory type clutch fan back on it, I found the mounts had sagged. I had to replace them to get the fan on. Now after 5 years or so I can tell the mounts in the Cutlass have started to sag again. Also the motor mounts on my 65 Coronet big block had sagged causing the headers to hit on the pitman arm. I finally replaced those with Schumacher polyurethane mounts and it raised the engine 3/4 inch. But I hate those! Car shakes like it has solid mounts! Anyone know of higher quality mount available?
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Old January 31st, 2015, 12:23 PM
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Originally Posted by naphtali5725 View Post
one more thing, are those mounts available other than on ebay/junk yard?
I've seen them offered by Firebird/Trans Am specialty houses, but I don't know if those are used or repros.
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Old January 31st, 2015, 12:25 PM
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Originally Posted by Greg Rogers View Post
Great thread! Thanks to Joe. I know this has been brought up before. But I can't find good quality mounts. My 71 Cutlass 350 had sagged so much the oil pan hit on the crossmember. My 70 Vista 350 had a small aftermarket flex fan on it when I bought it and when I attempted to put the original factory type clutch fan back on it, I found the mounts had sagged. I had to replace them to get the fan on. Now after 5 years or so I can tell the mounts in the Cutlass have started to sag again. Also the motor mounts on my 65 Coronet big block had sagged causing the headers to hit on the pitman arm. I finally replaced those with Schumacher polyurethane mounts and it raised the engine 3/4 inch. But I hate those! Car shakes like it has solid mounts! Anyone know of higher quality mount available?
Unfortunately there are no polyurethane mounts for Olds motors that I am aware of. Supercars sells very nice Olds mounts, though I have no first-hand experience with them. Other Olds vendors sell reboxed Anchor/Pioneer Chinesium mounts at far higher prices than RockAuto.
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Old January 31st, 2015, 01:00 PM
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Originally Posted by joe_padavano View Post
I've seen them offered by Firebird/Trans Am specialty houses, but I don't know if those are used or repros.
thanks joe! you wouldn't happen to have a set for sale would you? LOL
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Old January 31st, 2015, 03:13 PM
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Originally Posted by naphtali5725 View Post
thanks joe! you wouldn't happen to have a set for sale would you? LOL
Sorry, I've got one set that's on the shelf waiting for some mythical future project...
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Old March 4th, 2015, 06:23 AM
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thanks Joe,
i got the flat bar mounts from a member, and i found a set of the ones that bolt to the anchor 2387's on a firebird central site...
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Old July 19th, 2015, 10:00 PM
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1964-1968 frame mounts (all) - use P/N 2261 motor mounts
1969-1972 SBO frame mounts - use P/N 2261 motor mounts
1969-1972 BBO frame mounts - use P/N 2328 motor mounts
1973-1988 frame mounts (all) - use P/N 2328 motor mounts

This is good info, my understanding is that PN 2261 is roughly 1-5/8 from mount engine mount hole to center of frame mount hole, PN 2328 is 2-1/2, you can also use PN 2286 which is a ford/mercury part number and it measures right under 2 inches. I actually ran that on my BBO for the last year. So it's in between the Olds mounts but still fits.
I'm getting ready to change to the taller mount so I have a spare set that I would be happy to send you Joe for verication just to put into the data bank of what fits and what will work I can see where this might be beneficial for some people doing engine swaps

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Old July 14th, 2016, 08:27 AM
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Thanks Joe
Another question then.

Do I use the 2261 motor mounts since the motor is from 1968
of the 2328 motor mounts for the 1972 frame? With matching frame mounts of course.

Curt
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Old July 14th, 2016, 08:41 AM
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Originally Posted by Cj72olds View Post
Thanks Joe
Another question then.

Do I use the 2261 motor mounts since the motor is from 1968
of the 2328 motor mounts for the 1972 frame? With matching frame mounts of course.

Curt
The block doesn't matter; all Olds blocks have the same motor mount bolt holes. Just get the motor mounts that match the frame mounts.
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Old July 14th, 2016, 08:45 AM
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thanks
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