Need help on 340 motor mounts

daredevil said
maybe you have 318 mounts? they are about a half inch different than 340/36o mounts.

j par said
I have the same problem in my 73 duster which has a 68 Barracuda K frame. I ended up leaving the rubber mount loose because it's off set til the motor was in and then tighten. Then wrapped a chain threw the motor mount and around the k frame. It's a go car not a show car.
I'm converting to a 360 block now and I'm curious as I'm hearing something about the drivers side being a little different? I'll be following this thread closely as again I've this same exact problem.View attachment 1714771354

The difference on the engineblock betwen the 318 and the 340/360 is that the rearward mounting ear on the block sits about ½" further forward on 340and360 blocks compared to a 318.

the 318 mounts will fit on the 340/360blocks with just a few washers or a nut used as a spacer to fit the rearward ear on the driverside. 340 or 360 driversidemount on a 318 probably wont work.

I believe the car in the originalpost either has a missmatch of some kind of brackets and or insulators, or the car is just that far of from the factory, these cars are all over the map in the precisiondepartment.