I sure would like to see this engine stand assembled with an engine mounted on it. I think that the 14.75 inch dimension corresponds to the motor mount mounting holes in the block but it's hard to tell without seeing an isometric drawing of this stand. This is the kind of stand I am looking to build though.
Thanks Ross, photos of the finished product answer a lot of questions. The drawing only showed a "plan view", top down which did not depict the actual height of the stanchions.
Nathan, I believe that the drawing does in fact depict the plates that mount directly to the block as the "biscuit" style shock isolators are located under the plate. This design does not use the stock SBF motor mounts. If you use the dimensions on this drawing to fabricate your stand then you wouldn't need the universal dimensions.
I believe that my question has been answered...the design will change to copy this drawing, only on mine I won't need the biscuits as I won't be running an engine on the stand. Thanks again Ross.
Charlie, Tonyb55 built a stand that bolts to the 302 block without any mounts. Maybe he can can measure his for you. He's a little under the weather this weekend tho, he had some chest pains the Docs are checking out.
Well I think that using all the info provided, I have come to an answer to my original question. The left and right motor mount bosses are offset (front to rear) by the width of one connecting rod, using Nathan's photo we see that this is about 1 inch. It is also noted that the motor mount itself is offset...when mounted on the right side of the engine the isolator block shifts forward, vice versa on the left side. Ford designed these mounts very well...one part number fits both sides even though the position on the engine block is different. I have included a pic of the two mounts side by side, the green lines show how the mounts are offset when the mounting tabs are in line.
My initial question however related to the distance between the bolts that mount the engine to the chassis. If the bosses in the block are 13 inches apart then the distance between the chassis mounting bolts is 13 + 2 + 2 or 17 inches. In the pic of the single mount, there are two lines shown...the distance between them is 2 inches, that's where the 2's came from. Thanks to all for your inputs!
I have an update on the motor mounts from Horton Welders Series...the tabs are reversed from those on all the OEM mounts that I have seen. Horton sells mounts (rubber isolators) that have the proper mounting hole alignment but I have an issue with availability down the road should I need to replace a mount. I am going to cut the mount and reverse the tab so that it matches the motor mounts that are readily available at parts stores locally. Here is a pic of the mount...