<page_title> ALCO HH series </page_title> <section_title> Specifications </section_title> <table> <cell> Engine (HH900): </cell> <cell> McIntosh & Seymour 531T (turbocharged) </cell> <cell> Power (HH900): </cell> <cell> 900 hp </cell> <cell> Engine (HH1000): </cell> <cell> McIntosh & Seymour 538T (turbocharged) </cell> <cell> Power (HH1000): </cell> <cell> 1000 hp </cell> <cell> 750 kW </cell> </table>
The HH1000 replaced the HH900, replacing the 531 engine with the new McIntosh and Seymour 538T engine, turbocharged to produce 1000 hp (750 kW), a 100 hp increase on the previous model.