Seaboard Coast Line E7 By Faith Finfrock | September 12, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Former Atlantic Coast Line E7 537 was relettered for Seaboard Coast Line following ACL’s mid-1967 merger with Seaboard Air Line. ACL owned 30 of the 2,000 EMD passenger diesels, while SAL bought 35. Photo by Seaboard Coast Line