I have a 71 EC that I was told by Chevelle Classics was originally one of Eight(8) that was built in Dec 70 with 4 spd and LS-6 engine.
Does anyone have any info on these?

About 1990, Truckin Magazine had a picture and article about these 1971s
According to them; All were Cottonwood Green, Jade Top, Custom Body w/Silver Lower, Cowl Induction, Black Racing Stripe, Interior of Bed-Black, No Power, Heater Only, Bench Seat, Rally Wheels, Racing Carpet w/No Sound Deadening, 410 Posi, Rock Crusher w/Hurst. These were the only SS built with the 2 tone and chrome.

I am still looking for someone who can verify this.