page_title: International L series
section_title: Engines
hierarchical_section_title: International L series / Engines
caption_attribution_description: Among the unrestored vehicles sold at the auction in conjunction with the LeMay Open House.
context_page_description: The International L series was introduced by International Harvester in fall 1949 as the replacement for the KB series and were available as everything from light pickup trucks and delivery vehicles to full-size tractor-trailers. Electric wipers, a radio, and a clock were optional. International would continue to produce the line until 1952 when it was replaced by the R series.
context_section_description: The lighter-duty versions were equipped with the all-new OHV "Silver Diamond" engines in two different sizes (220cid & 240cid), while the medium-duty versions retained the older 269 ci "Blue Diamond", also an OHV engine, although it was now called the "Super Blue Diamond" after some detail improvements. The BD-269 has the same peak power as the smallest, but offers more torque, at 222 lb⋅ft (301 N⋅m) versus 192 lb⋅ft (260 N⋅m) for the Silver Diamond 240.
  L-series specs (1949)
  Engine
  Silver Diamond 220 OHV inline-six, 220.5 cu in (3,613 cc) and 100 hp (75 kW) (L-110/120/130/150)
  Silver Diamond 240 OHV inline-six, 240.3 cu in (3,938 cc) and 108 hp (81 kW) (LB-140/L150/160)
  Super Blue Diamond BD-269 OHV inline-six, 269.1 cu in (4,410 cc) and 100 hp (75 kW) (L-170/180)
  Red Diamond 372 OHV inline-six (L-190)
  Red Diamond 406 OHV inline-six (L-200/option in L-190)
  Red Diamond 450 OHV inline-six (L-210/option in L-200)
  Transmission
  Three speeds forward, one reverse, synchromesh column mounted
  Four speeds forward, one reverse, non-synchromesh floor mounted, Model T9
  Four speeds forward, one reverse, synchromesh floor mounted, model T98 (option in L120-L170 after 5/50)
  Five speeds forward, one reverse, non-synchromesh floor mounted (L180 series, option in L160-L170)
  Overdrive Five speeds forward, one reverse, non-synchromesh floor mounted (option in L160-L180 series)
  Electric 2-speed rear axle (option in L160-up)
  HD Five speeds forward, one reverse, synchromesh floor mounted (L190-up, overdrive optional)
  Manual 3-speed Auxiliary transmission (option in L190-up)
caption: Medium-duty L-180
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