Solid motor mount
February 10th, 2013, 08:24 AM
#1
Registered User
Thread Starter
Join Date: Jan 2011
Location: MN
Posts: 82
Solid motor mount
I've been wanting to do a solid mount on the drivers side for some time. I finally bit the bullet and designed and built my own. My car has a 455 with what appears to be small block mounts and frame pads. The OE style mount has part #2261 on it.
I bought a new mount at O'Reilly for the tidy sum of $3.29 and used it to fab up a jig to give me the proper mounting holes and angles needed. I made a few different mounts making changes until I came up with one I liked.
Jig
20130124_105731.jpg
Jig with stock mount
20130124_105400.jpg
The mount I made has 3/8" mild steel for the engine mount side and 1/4" mild steel for the angled pieces going to the frame pad.
Tacked together
20130126_080826.jpg
I'm fortunate enough to have access to a Bridgeport mill so all pieces were created with it.
TIG weld before paint.
20130128_071940.jpg
Painted and ready for install.
20130204_095015-1.jpg
20130210_081621.jpg
Installed
20130210_101008.jpg
20130210_101034.jpg
I bought a new mount at O'Reilly for the tidy sum of $3.29 and used it to fab up a jig to give me the proper mounting holes and angles needed. I made a few different mounts making changes until I came up with one I liked.
Jig
20130124_105731.jpg
Jig with stock mount
20130124_105400.jpg
The mount I made has 3/8" mild steel for the engine mount side and 1/4" mild steel for the angled pieces going to the frame pad.
Tacked together
20130126_080826.jpg
I'm fortunate enough to have access to a Bridgeport mill so all pieces were created with it.
TIG weld before paint.
20130128_071940.jpg
Painted and ready for install.
20130204_095015-1.jpg
20130210_081621.jpg
Installed
20130210_101008.jpg
20130210_101034.jpg
Last edited by covertolds; February 10th, 2013 at 08:29 AM.
February 19th, 2013, 04:36 PM
#3
Registered User
Thread Starter
Join Date: Jan 2011
Location: MN
Posts: 82
February 19th, 2013, 06:58 PM
#5
hey buddie if this is not permanetly installed yet it could rattle you real good with decent power. I use a competition engineering torque limiter with a rubber mount and it does not seem to be to bad to deal with. I am almost definite that solid mounts are great for wheelie cars though maybe that could be your cue to do it though.
February 20th, 2013, 04:40 AM
#7
Registered User
Join Date: Mar 2010
Location: Wakeman, OH
Posts: 1,065
hey buddie if this is not permanetly installed yet it could rattle you real good with decent power. I use a competition engineering torque limiter with a rubber mount and it does not seem to be to bad to deal with. I am almost definite that solid mounts are great for wheelie cars though maybe that could be your cue to do it though.
March 16th, 2013, 06:03 AM
#10
Registered User
Join Date: Oct 2010
Location: Dover, Ohio
Posts: 1,207
I've been wanting to do a solid mount on the drivers side for some time. I finally bit the bullet and designed and built my own. My car has a 455 with what appears to be small block mounts and frame pads. The OE style mount has part #2261 on it.
I bought a new mount at O'Reilly for the tidy sum of $3.29 and used it to fab up a jig to give me the proper mounting holes and angles needed. I made a few different mounts making changes until I came up with one I liked.
Jig
Jig with stock mount
The mount I made has 3/8" mild steel for the engine mount side and 1/4" mild steel for the angled pieces going to the frame pad.
Tacked together
I'm fortunate enough to have access to a Bridgeport mill so all pieces were created with it.
TIG weld before paint.
Painted and ready for install.
Installed
I bought a new mount at O'Reilly for the tidy sum of $3.29 and used it to fab up a jig to give me the proper mounting holes and angles needed. I made a few different mounts making changes until I came up with one I liked.
Jig
Jig with stock mount
The mount I made has 3/8" mild steel for the engine mount side and 1/4" mild steel for the angled pieces going to the frame pad.
Tacked together
I'm fortunate enough to have access to a Bridgeport mill so all pieces were created with it.
TIG weld before paint.
Painted and ready for install.
Installed
March 16th, 2013, 09:45 AM
#11
Old(s) Fart
Join Date: Mar 2007
Location: Northern VA
Posts: 47,472
Nice work, though as a structural engineer I would recommend a small web tying the two tabs to the mounting plate to avoid any fore-aft flexing and potential weld cracking. I'm assuming your car was originally an SBO, thus the 2261s in a 1972.
As for why only one, only the driver's side is in tension when accelerating. The passenger side rarely fails.
As for why only one, only the driver's side is in tension when accelerating. The passenger side rarely fails.
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