Yes, but it must be with one of the same type. EG, you can swap an Intel Pentium 3 1.5GHz with a Intel Pentium 3 2GHz, but not with an Intel Pentium 4 2GHz. Also, it must be the same socket type.
What about it? Chevy will interchange regardless of the years. Wiring and plumbing is going to vary but it will bolt to the transmission. Buick, Olds, Pontiac will interchange with each other with...