IIRC; as to engine mounts, between slanty and SBM, only the driver's side is different. You can cut it off and move it, but IDK if it can be reused without modifying it. Ima going from memory here ......
68 to 72 are biscuit-style, while the spools came in 73. Big-blocks use different mounts again. As mentioned the 67 has a one-year only idler-arm mount.
