65 Valiant Signet 273/904 swap to 360/TF questions

Although the passenger side mount is the same for all small block motors, you will still need to use the early mounts that you have, passenger and drivers side to mount to the early crosssmember! The drivers side will have to have a triangulated ear welded to it to accommodate the mounting tabs of the 340/360 motor! The rear trans mount is the same as mentioned above, the driveshaft will be different!