Any change in motor mounts 318 to 360?

[Richie]

Hi guys.

I was wondering about this. I thought I heard some where if you put a 360 in an A body that had a 318 in it you would have to get a couple of new motor mounts becaus a 360 is a bit different. I have a 69 Dart. I was thinking about one of those 320 hp crate engines. Thanks

 

[340dartswinger]

i believe one side (maybe the drivers side) mount is a little different,but you can get one of those fairly easy.

 

[OldVart]

The left side mounting lugs on a 360 engine are not exactly the same as a 273/318. The rear most boss is closer to the front ones on a 360, so you need to fill in the 1/4" or so space either with washers or weld a piece of metal to the inside rear of the mount and redrill the hole. Also, if memory serves me correctly, the right side 318 mount will only bolt up with 2 bolts. Again, you can add a piece of triangular steel to the 318 mount to pick up the third mounting boss on the 360. If you need some photos, I have some around somewhere that I took for Cerwin.

 

[Cerwin]

 

[rumblefish360]

Good shot, now we need to archive this for easy searching.

You can see the space. You can stack up washers or cut a tube to length.

 

[OldVart]

That is the original 273 mount from my 66 Valiant and is mounted on a 1978 360. I've used washers since I put the engine in several rears ago, but this time I'll do it right and add some metal to the mount.
Thanks Cerwin, saved me searching for them again.

 

[Cerwin]

That is the original 273 mount from my 66 Valiant and is mounted on a 1978 360. I've used washers since I put the engine in several rears ago, but this time I'll do it right and add some metal to the mount.
Thanks Cerwin, saved me searching for them again.

You bet :thumbup: