Category: Motor Mounts

Questions we’ve been asked about motor mounts.

Dear Welder Series… 4.7 Dodge engine mounts?

Dear Welder Series…


I’m looking through your website looking for a way to mount a Dodge Dakota 4.7L into a Dodge 1500 chassis. I’m doing an engine/trans/body swap of a Dakota onto a 99 Dodge 1500 frame with a straight Dana 44 front axle. I figure I’d have to build or modify something. Any ideas?  



Dear Kraig…

Hi, Kraig.

From pics on the internet, it looks like your engine has threaded bosses on the side of the block. We could make mounts similar to our LS mounts but with a plate that would bolt to the existing bosses on your engine. The center of the urethane bushing would be 3-3/8” off of the block boss surface.

This can be easy IF:
– The boss’ surfaces are all on the same plane. If they are not, shims could be used between the low one(s) and the main plate.
– Nothing else wants the same space as the mount. This could be exhaust or engine accessories or…

The tabs would be trimmed to fit and welded to the frame. 

We would need accurate hole spacing and thread size from you.  

Does this seem like a solution?  Thanks for asking us.

Paul Horton

Dear Welder Series…
Yes, that is what I was thinking.

The engine is offset to the passenger side to allow space for the front drive shaft. So there is about 6 ½” between the block and frame on the passenger side and 9 ½” on the driver’s side.

There is a total of 8 threaded holes on each side of the block for mounts. There are 4 holes that are on the same plane (or close to it, might need a small shim) that will work for the new mounts.  

But I ordered parts to relocate the steering box and want to get that done before continuing with the motor mounts.

I’ll get back to you.

Dear Welder Series…

I would like to get the motor mounts on order for the 4.7 liter Dodge engine.

  • The motor is offset in the engine bay. About 6.5” on the passenger side and 9.5” on the driver’s side to the inside of the frame. I want to be sure the brackets will reach.
  • The boss surfaces on the side of the block are all on the same plane. The 4.7 block has a raised area in it that will interfere with the plate, that I’ll have to notch out for at the bottom of the plate. Or put spacers at all 4 bolts so the plate is above the hump. Or a little of each. What do you think?
  • The mounting bolts are 10mm x 1.50 coarse thread. See attached drawing for plate size and hole pattern.
  • I saw how you cut around the bolt holes in the corners of your plate. I would prefer to have more meat around the holes, so a rectangle plate is preferred.

Let me know what the cost is and how to get this going.

Dear Kraig…
Hello, Kraig.

I have done CAD files for the two engine plates exactly like your drawings.  

The gusset and bushing for the LS mount locates the bushing center 3-3/8” off of the block boss surface and at 90 degrees to the boss surface.  The 20494 Versatabs have the hole center 5-1/2” from the frame edge.  This doesn’t add up to 9-1/2” but it might be worse or better depending on angles and bracket height.  The spacers you suggest might help with the distance issue as well as clear the hump.

Let me know what you think of the spacer idea or if we should consider a longer set of engine plate/gusset combination or a longer Versatab.

Thanks for the drawing.  It’s very clear what you want.


Dear Welder Series…
The 9.5” dimension was taken from the inside of the frame to the edge of the oil pan. The motor mount will be above that on the angled part of the block, which will put it closer to the frame rail. Plus the spacers will move it forward as well. I’ll look at it again tonight, but I’m willing to give it a try with your stock mounts and putting spacers between the bosses and plate at each bolt. Worst case, I’ll have to make a set of longer Versatabs, or shim them out from the frame with a piece of ¼” plate.

LS in a 52 Cadillac

Dear Welder Series…
I finally received the engine mounts for LS engine. Delayed a fair bit by Canada Post [due to strike. Workers are back to work now].
After quite a few tries, managed to locate engine where I wanted. Tack welded engine top plate, then made plywood template for vertical rib. Nothing is straightforward on this 52 Cadillac.
Both mounts now permanently installed. I’ll be painting them once everything else is complete. Got steering, brakes, exhaust still to figure out.

Dear Welder Series… Crown Vic motor mounts?

Dear Welder Series…
I am putting a 351m in a 2003 crown vic front suspension, any sugestions on motor mounts?

Dear Vern…
Vern, our Ford mounts are for blocks that have 2 vertical mounting holes on 7″ centers. If your block is like this, either kit will work well.

I hope this helps.
Paul Horton

Dear Welder Series… SBC in a Stude?

Dear Welder Series…
I will be putting a chevy v8 350ci in my 1956 Studebaker very soon and will try to use the chevy mount and see if I can use the lower part of the mount and bolt it to the bracket that’s on the Studebaker frame to end up with a bolt on instead of a weld on mount system. What do you think? Has anyone done this?

Dear Dave…
Hi Dave, thanks for your note. I’m not familiar with the Studebaker engine mounts and I haven’t heard of anyone doing this. Maybe someone will see your question and have better information than I can provide?


Dear Welder Series… 1952 Chevy pickup Mustang II kit?

Dear Welder Series…
Hi there. Just now found you guys on the web. I am garage building a 52 Chevy pickup. I’m interested in picking up your IFS set up and a good 4 link for the rear. I have the body of mine stripped off the chassis and am getting ready to send it to be blasted and have the chassis boxed. Can your IFS be bolted or welded in with the frame boxed or should I have your parts put in and then box it? Does your IFS kit come with the motor mounts as well or are they separate? I could also use a trans crossmember as well. I’m going with a 454cid and a 700R4.

Dear Zane…
Our Mustang II kit welds into a boxed frame, so you can go ahead with that. If you followed the instructions online, be aware that it will almost certainly be necessary to trim the top of the frame rail for upper arm cross shaft clearance. This can be done after boxing.

We have 2 types of motor mounts for your 454:


These would have to be trimmed to fit your frame (the way the boxing plates are installed will affect the frame width) and to put the engine at the height you want.

I’d suggest transmission crossmember 2115:

This adds strength to the frame and lets you drop the saddle without removing the exhaust.

Thanks for looking at Welder Series parts.

Paul Horton

Dear Welder Series… 1946 Ford transmission mount questions.

Dear Welder Series…
I hate to ask because I’m afraid I may have missed it in the blogs but Im going to anyway. I have a 1946 ford coupe. I’m installing a 4.6l dohc and 4L70 transmission in. I am getting the motor mounts and I am considering the the tubular center section. The factory frame has some plating but with large holes in it. Do I need to cut away that plating and make it solid? Also I’m not sure what if any transmission mount plate combinations I would need to mount up the 4L70. It’s a drivetrain from a 1998 Lincoln Mark Viii. Thanks for the help.

Dear Tom…
Tom, I’m not familiar with the Lincoln transmission, but we are modifying our 205041 adapter plate so it will bolt to the Ford C4, C6, and AOD transmissions. Here is the product:

If the 4L70 is available for you to get the mounting hole centers, please send them to me.

Regarding the boxing plates, we left the factory boxing in place and filled any holes necessary to mount the crossmember and engine mounts.

Because your car’s floor has a bit of a driveshaft tunnel, our tubular center section will not work as nicely as it does in vehicles with a flat floor. Check out the installation info below to see if this is how you want to go.

Thanks for looking at Welder Series parts.

Dear Welder Series… Ecotec motor mounts?

Dear Welder Series…
Hello, I was just going over your website (very good I might add).
I saw the pictures of an engine mounting plate for the Ecotec in one of your articles.
I am in the process of putting the Ecotec 2.4 into my 72 Jeep CJ5 and was wondering if you had any plans to produce the plates?

Vintage Jeep Conversions LLC

Dear Terry…
Thanks for writing, Terry. The Ecotec install was part of the NSRA giveaway car which Dave Tucci built, that DW helped with. We didn’t make the plate and don’t have any plans to (unless people keep asking us for it…). We do a fair bit of custom work, like preparing CAD drawings and cutting to customer’s sketches. If we can help with that, please let me know.

Thanks for your interest.

Dear Welder Series… Motor Mount Dimensions

Dear Welder Series…
Hello, I was looking at your SBC motor mount (shown here:)

and was wondering what are the dimensions of it. What I mean by dimensions is what is the widest it is when everything is mounted, like what is the widest frame rail will it fit.


Dear Martin…
Martin, there are 2 versions of the urethane mounts. One (#2149) would max out at 32″ from boxing plate to boxing plate. The other (#21496) would max out at 33-1/2″ boxing plate to boxing plate. These dimensions will be reduced if the engine is mounted higher in the frame rails because the frame brackets will be on an angle.

Thanks for looking at Welder Series parts.

Dear Welder Series… 4.6l in a ’65 Mustang?

Dear Welder Series…
I was wondering how long it typically took to receive the “Ford Motor Mounts, 4.6L/5.4L/Coyote, Urethane Insulated” kit that you have to offer on your site? My project car is up in Pennsylvania so I am not certain what I need at this time, but it looks like your kit might do the trick.

Just some background…  I am putting a 4.6l mod motor into a 65 mustang. In this setup, would the welded kit work properly to allow me to get the engine as far back towards the firewall as possible? Not sure how much leeway your kit provides for backwards/forwards positioning.


Dear Erik…
Erik, our 4.6l kit can be installed where ever you want it along the frame rails. Kits are normally in stock and would take about 3 days to get to you from our place.

Thanks for looking at Welder Series parts.

Dear Welder Series… Motor Mounts for ’56 Chevy Pickup?

Dear Welder Series…
I am emailing to find out if you have a Chevy V8 mount kit that will work in a 1956 Chevy pickup truck.


Dear Jase…
Jase, either of our Chev motor mount kits will work in your ’56. The frame brackets must be trimmed to put the engine at the height you want.
Check these products out:

Thanks for looking at Welder Series parts.