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What is a KA24DE?

What is a KA24DE?

The 2.4 L (2389 cc) KA24DE was used in many Nissan cars and trucks. Most KA24DEs bound for the US were built in the Mexican city of Aguascalientes, with the exceptions of the 240SX and 1994-97 Altima (rebadged Bluebird SSS), which were manufactured in Fukuoka Prefecture, Japan, and the U13 Bluebird released in Australia with FWD configuration. The KA24DE is very similar to the KA24E. The only major change is the head design. The KA24E has a Single-Overhead Cam with 3 valves per cylinder, and the KA24DE has Dual-Overhead Cams with 4 valves per cylinder(shim-over-bucket design). Other design improvements include the use of a knock sensor, oil injection at the base of each piston, and top-firing spark plugs. In addition to the increased power and torque, the KA24DE has a slightly wider power band than the KA24E. These engines have also been proven to be quite tough. In turbocharged form with stock long block 500+ whp has been achieved but short lived and 1000+ whp fully built. There are a plethora of stock block 300+ whp daily driven KA24DE-T's. This engine has pushed into the 7 seconds in the 1/4 mile in some Nissan 240SX's. With their large stroke these engines are known for being low revving torque "monsters" considering the torque numbers have been known to stay with or even higher than hp output.

Specifications

  • Bore × Stroke: 89.0 × 96.0 mm (3.50393 in. x 3.77952 in.)
  • Cubic Inch Displacement: 145cid
  • 4 Counter weighted crankshaft or half counter weighted
  • Max power: 155 hp (116 kW) @ 5600 rpm
  • Max torque: 160 ft·lb (217 Nm) @ 4400 rpm
  • Valve Configuration: DOHC, 16 valves
  • Compression ratio: 9.5:1(94-98), 9.0:1(91-93)
  • FSM states 179psi per cylinder

Applications

  • 2000-2004 Nissan Xterra
  • 1998-2004 Nissan Frontier
  • 1993-2001 Nissan Altima
  • 1991-1998 Nissan 240SX
  • 1997-2000 Nissan R'nessa (4WD model, Japan)
  • 1998-2001 Nissan Presage U30 (Japan)
  • 1999-2001 Nissan Bassara U30 (Japan)
  • 1993-1997 Nissan Bluebird U13
  • Isuzu COMO
  • Nissan Largo
 

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