engine mounts

[teringer]

getting ready to switch engines in my 1965 cuda,someone told me there is a motor mount problem going from 273 to 340.has any body run into this problem( thanks)ops:

 

[chryslerfat]

You will be able to modify your original mounts with a welder and hack saw.

 

[cudamark]

Yup, you need to section the drivers bracket (narrow it) and move a tab or two depending on which engine block you're using.

 

[pishta]

You dont NEED to move anything, Just bolt old ones onto the frame, drop the 340/360 in and shim the driver side gap you get with 4-5 washers.

 

[BillGrissom]

If you don't like multiple washers, Ace carries spacers that work well for alternators too. You can even get chrome if you want some flash.

 

[chryslerfat]

You dont NEED to move anything, Just bolt old ones onto the frame, drop the 340/360 in and shim the driver side gap you get with 4-5 washers.

The right side mount needs an ear cut and welded to the other side of the mount. The left side just needs a spacer.

 

[danthedewman1]

Love all the different answers..Whats the easiest?

 

[moparlee]

The easiest would be to buy some of these....

http://www.engine-swaps.com/Pages/ProductsYear/63.66aBody.html

I ended up doing this, but I did modify a pair..........let a guy borrow them to make another set and he died. Never seen them again.

 

[green1]

Just add a 3/4" nut to upper driver's side bolt, as a spacer.

 

[chryslerfat]

Just add a 3/4" nut to upper driver's side bolt, as a spacer.

That works on the left but what about the right. Without cutting the one ear and moving it to the other side to re-weld it you will end up with only two ears bolted to the mount.

 

[green1]

Move it to the other side of the ears.

 

[pishta]

That works on the left but what about the right. Without cutting the one ear and moving it to the other side to re-weld it you will end up with only two ears bolted to the mount.

Yes, your right but you still have 2 mount points. 3 is better, but 2 is all a motor needs per side. A 273 is not going to pull an ear off the block with its massive torque. These are for a 403 stroker

 

[chryslerfat]

The OP said he is going from a 273 to a 340 therefore he needs to do as you pictured to keep it 3 bolts on the right mount.

 

[green1]

It works with spacers. No breakage with a hot 340, and slicks.