73-77
The El Camino's of these years weren't the best looking El Camino's but there still cool. they where the last years in which you could get the 454 SS option, and the 396 SS option.
Here are Some pics if the 73-77 El Caminos

This is a all stock 77 Elky

This is a plane Jane 74 Elky

This is also a 77 Elky, but.. it has a 454 which makes it a SS and very nice, not to mention last of its kind.