motor mounts

i have a 66 c10 i want to put a 305 in what motor mounts do i need?it has a straight 6 now:CRY:

Hey Streets........not in my 74 GMC......the mounts on the frome sre same but you have to get V-8 mounts for the side of the motor ...........not sure about the 350......mine was a 350 hp 327