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motor mounts: need some help :(
#1350101 Sun Mar 15 2020 04:40 PM
Joined: Jan 2020
Posts: 141
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Shop Shark
The engine in my '57 Panel was a 350 that was added later in its life. The engine was shot, so I pulled it, with the plan of swapping it out with a fresh 350. Stupid me gave away the original core without pulling the motor mounts off of the block :|

I have pics of how they looked, and can email them for identification, but can anyone help me identify the new ones that I need to buy? I have the matching part that they are to mate to on the body/frame, I just need to know what to order.

The casting # of the original block was 3970010, which was a 1969-80 Chevy 350.

Thanks in advance,

Jim

Last edited by pan3lman; Sun Mar 15 2020 05:04 PM.

1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
Re: motor mounts: need some help :(
pan3lman #1350103 Sun Mar 15 2020 04:42 PM
Joined: Jan 2020
Posts: 141
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Shop Shark
Pics added:

Attached Files
350_motor_mounts_origd.jpg (96.19 KB, 301 downloads)

1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
Re: motor mounts: need some help :(
pan3lman #1350104 Sun Mar 15 2020 04:42 PM
Joined: Jan 2020
Posts: 141
P
Shop Shark
More pics:

Attached Files
350_motor_mounts_origc.jpg (98.03 KB, 294 downloads)

1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
Re: motor mounts: need some help :(
pan3lman #1350105 Sun Mar 15 2020 04:44 PM
Joined: Jan 2020
Posts: 141
P
Shop Shark
More pics:

Attached Files
350_motor_mounts_orig.jpg (75.57 KB, 307 downloads)
350_motor_mounts_origb.jpg (126.07 KB, 316 downloads)
20200315_121232.jpg (308.06 KB, 303 downloads)

1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
Re: motor mounts: need some help :(
pan3lman #1350109 Sun Mar 15 2020 05:19 PM
Joined: Jan 2020
Posts: 141
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Shop Shark
These look like they might be the ones! They sure look correct. Can anyone help to confirm? Also, what size bolt holds them on?

https://www.ebay.com/itm/CHEVY-RUBB...4?hash=item41b7baf80c:g:zPEAAOSwal5YKU06

Last edited by tclederman; Sun Mar 15 2020 05:47 PM. Reason: moderator created link

1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
Re: motor mounts: need some help :(
pan3lman #1350124 Sun Mar 15 2020 07:55 PM
Joined: May 2005
Posts: 7,378
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General Purpose
Looks like that is the one. Not sure. The bolts will be 3/8-16 X 3/4". Measure depth of hole and thickness of motor mount and washer to confirm.
The long bolt should be 7/16 X about 5"...... I see you have that.

Looks like that may have used Camaro mounts?

Anytime you need bolt sizes, just try bolts from your stash or steal one from the motor and try till you find one that threads in by hand. Then measure depth of threaded hole, measure parts stack. Add. Take the test bolt to store to get the correct threads and buy length a tad less than the stack+depth. After a while you will know thread size by looking. Grade 5 is suffice x 10.


I'm away on an ego trip. Will be back on Feb 30.
I'm not an Auto Mechanic, but I play one on TV.
I charge $0.02 for every opinion and I take Paypal.
Plan B is always better than plan A, by definition.


Re: motor mounts: need some help :(
pan3lman #1350846 Fri Mar 20 2020 06:16 PM
Joined: Jan 2020
Posts: 141
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Shop Shark
I found this diagram on a Chevelle site, and Type A sure looks like the ones:

https://www.chevellestuff.net/tech/images/engine_mount_types.jpg


1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
Re: motor mounts: need some help :(
pan3lman #1350882 Fri Mar 20 2020 11:51 PM
Joined: May 2005
Posts: 7,378
B
General Purpose
Try to buy them at a friendly local auto parts store. Known as FLAPS. O'Reilly's has never denied a return by me. Till you find the one that works.


I'm away on an ego trip. Will be back on Feb 30.
I'm not an Auto Mechanic, but I play one on TV.
I charge $0.02 for every opinion and I take Paypal.
Plan B is always better than plan A, by definition.


Re: motor mounts: need some help :(
pan3lman #1350890 Sat Mar 21 2020 12:59 AM
Joined: Jan 2020
Posts: 141
P
Shop Shark
Thanks! I have ordered a set from eBay that can be returned if needed. Now let's just hope they don't get hung up in coronavirus customs.. :|


1957 Chevy Panel Truck, powered by SBC 350 from 1977 Camaro
Author, Bring CHANGE Into Your Life (a truly easy investment tool)
https://www.amazon.com/Bring-CHANGE-Into-truly-investment/dp/1077276869
Re: motor mounts: need some help :(
pan3lman #1351396 Tue Mar 24 2020 02:34 AM
Joined: Dec 2014
Posts: 677
M
Shop Shark
GM part number 92614630


1951 Chevy Panel Truck
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