Olds Engine question.

I'm making new Engine mounts for a Olds powered Hot Rod.

My question is:

Are the four 3/8 16 threaded holes that form a half circle under the main front Crank seal used for the original Front Engine Mount?

I was thinking about using those to make a Hurst Type front mount ( like you can buy for Chevys...)

 

That would be great.

Thanks.

 

I've seen two types too

the Hurst type uses three small bolts on the front, and one very large bolt on the side of the block.

the other takes the large bolt on the side and a single small bolt in the corner of the block up near the front of the exhaust manifold.

I will try to find pictures too..

 

The 2 piece Hurst mount for the Olds uses 3 bolts on either side...2 along side of the crank and 1 higher up on each side. The 2 near center below the crank are not used. Using a frontal picture (no balancer) from Honest Charlies 1961 catalog.

They resemble a Chevy Hurst mount cut in half and drilled for the Olds. That's how Hurst did it.

 

here's a small blurry picture of the Hurst mounts

 

Here are the mounts that came on my engine.

 

So those are two mounts?
Not one cradle like the one for a Chevy?

Cool.
That looks like what I need...
( Maybe with the sides a little lower )

Thank you guys...

 

http://www.jalopyjournal.com/forum/showthread.php?t=64014&&showall=1

 

Yeah, I've seen those on Ebay.
Looks like the place where the rubber mount bolts to is offset quite a bit from the centreline of the other 2 bolts.
I want to make sure there is absolutely no give or flex in these mounts...

 

why?
what are you using for a trans and/or mounts?

 

LaSalle, so there is a lot of distance between the Front and Rear mounts.
And with that heavy Engine Gearbox combination, the Angle Iron Mounts that hold it up right now have 1 1/2" flex in them...

 

maybe you should get some of these http://cgi.ebay.com/ebaymotors/1949-56-Oldsmobile-Transmission-Mounts_W0QQcmdZViewItemQQcategoryZ33727QQitemZ8011507440QQrdZ1QQsspagenameZWDVW for the bellhousing

 

not only the 800 plus pounds of motor/transmission dead weight there,

if it's a stout motor it can easily have five or six hundred foot pounds of torque

trying to tear it apart

 

both my car and my brother's use the cast iron hydra-matic with this style mount,and they weigh a hell of a lot more than a cad-lasalle.

there is no mount on the tailshaft,the trans is supported at the bellhousing.

 

Its supposed to be...

And then there is going to be sidestepping the Clutch, and all that good ****...

 

For the 1964 394 I am using in my project, I used the center mount located under the damper and made some rear motor mounts that pick up some trans mounting bolts. I am using a early ford ****** which allowed me to share some bolts with the adaptor. I think this could be done with larger tranmissions if the mount is mounted with a bolt throught the mount then through some standoffs and then through the ****** into the bell housing.


David

 

So how do you tell the difference betwen early and late bellhousing ? I would be interested to know which I have.....