User:Nswgrbuffavster/Alco 251

The Alco 251 series consisted of 6 cylinder in-line, V12 and V16, Diesel 4-cycle, charge air cooled and turbo-charged engines.

Each cylinder was 9' x 10'  (228mm x 267mm Bore x Stroke) or a swept volume of 668 cubic inch per cylinder. Compression ratio was 12.5:1.