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
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Jig with stock mount
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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
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I'm fortunate enough to have access to a Bridgeport mill so all pieces were created with it.

TIG weld before paint.
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Painted and ready for install.
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Installed
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Very nice, we were talking about the unavailability of solid mounts for Olds a while back.

 

Made another one.

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Very nice metalwork!
But why only the driver's side? I thought mounts should be either all rubber or all solid to avoid flexing at a solid mount...

 

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.

 

Nice work Bill, I see you are still keeping your car perfect. I always liked that thing!

 

I run one solid and one rubber mount. No vibration issues. Seems the same as two rubber mounts to me.

 

A lot of people run a solid on the drivers side and rubber on passenger. JFB the torque limiter is another approach, and a cable or chain would be another.

 

Would these be the same for 65-67?
I want one!

 

Looks Great -- These look exactly like the ones "Smitty" at M&J Proformance makes and sells. I've been using the "Smitty" mounts on both sides with no vibration issues at all.

 

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.

 

Pretty work. I can't wait to get my titanium 3D printer.