I know its possible. I've seen many examples of it myself. as for keeping it smog legal, just get an engine with the pollution control stuff. The general rule with swapping a v6 to v8 is also swapping the entire v8 drivetrain. Other than that, new mounts, bellhousing, exhaust, fan shroud, and im not sure about ignition. Thats about all i know for that. A good resource is cardomain.com. Look up people with el caminos that have done the engine swap and ask them.

d'oh hit the wrong button. this was meant for mbren54500. so nvm this one and go to his post instead.
:slap: