I know tis doesnt have to do with the mechanics of a engine but i have a crate 350 years 65-75 and my motor mounts look like they are about 1/2 inch thick rubber probably 1 threaded stud molded into the rubber facing down to my frame mount then it has 3 holes in a triangle formaition for the block to bolt to .

Is this a common mount ? this 350 is in a datsun 280z im looking to find solid motor mounts to keep it from moving . Ive seen engine bars that weld to the frame then bolt to the head or block are these a good option as id hate to try to replace the mounts

Jason