Silver Series S-2 Southern Pacific #1771Details: Built by the American Locomotive Company (Alco) the low hood S 2 was introduced in 1940 to replace Alco's earlier high hood switchers. The 1000 horsepower S 2 was a turbocharged version of the S 1. There were 1,502 S 2s sold to North American Railroads. The versatility of the S 2s was evidenced by their service on mainline, shortline and industrial railroads. Features: Scaled from actual prototype measurements Option for horizontal or