Series 149
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The Detroit Diesel 149 series first came out in the early 60s.
The first configuration was a 12V149 Natural rated at about 600HP soon followed by a 16V149 Natural rated at about 1000HP. The next thing you know, people wanted more power out of it so they added turbos to the engine. Over a period of time they kept developing the engine. They finally brought the engine up to 137.5 HP. per cylinder and 406 FT.lbs torque per cylinder. That is a lot of power coming out of 149 cubic inches per hole. That is with DDEC 3 electronics with intercoolers and by-pass blowers, SSCC. The engine is available in 8V, 12V, 16V, 20V configurations. 5 3/4 bore x 5 3/4 stroke hence it is a square bore design. It has a high power to weight ratio. The 20V149 TIB DDEC3 SSCC in a generator spec put out 2936 HP out out of 2980 cubic inches. All 149s have overhead cams, the cylinder heads sit down in the block and referred as 'pothead' design. The blowers also set down inside of the block; this section of the block is called the 'airbox'. Above the blower is a thick piece of steel that covers the blower and seals the top section of the air box. On a turbocharged engine an intercooler and sometimes a by-pass housing is present with the intercooler housing. The 12V, 16V have two blocks, two crankshafts bolted together, two blowers, 4 Turbos. The 16V149 has dual 10 inch exhaust outlets with 8 bolt flanges.
