valve actuation. Design improvements of the dual cam engine include the use of a knock sensor, larger diameter girdled main bearings in the Japanese block, different oil pan (not interchangeable between Japanese and Mexican blocks), different oil pickup (front pickup on Japanese block and side on Mexican block), dipstick location (toward the rear of block on Mexican and mid block on Japanese) and piston oil squirters. In addition to the increased power and torque, the KA24DE has a higher redline than the KA24E. KA24DE-A is an Altima specific model of the KA24DE. The head and block are non-interchangeable between all other models and are uniquely cast for front wheel drive operation. Differences in the Japanese block to Mexican are also present. The Mexico blocks (all DEs except those found in the S series) implemented a distributor and oil pump drive similar to the L series; from the crank nose. They also used a single row chain for the upper timing assembly without valve cover mounted guide. In addition to this, they removed the rearmost cam journal in the Mexico head. The crank rides on individually capped bearings with a slightly smaller diameter than the Japanese block, with shorter, slightly lower compression pistons in cylinders that have thicker walls than the Japanese DE. They retained the knock sensor and piston oilers. Specifications Bore × Stroke: Displacement: Max. power: at 5,600 rpm (Navara/Frontier (D22) at 5600 rpm) (Xterra engine: at 5200 rpm) Max. torque: at 4,400 rpm (Navara/Frontier (D22) at 3600 rpm) at 4000 RPM (2000-2004 Nissan Xterra). Valvetrain configuration: DOHC, 4 valves per cylinder Compression ratio: 9.5:1 (240SX 91-98), 9.2:1 (Navara/Frontier (D22)), 9.2:1 (Xterra Engines) Timing Chain Applications KA24DE 2000-2004 Nissan Xterra 1998-2016 Nissan Navara/Frontier (D22) 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 KA24DE-A 1993-1999 Nissan Altima [ - Max torque . Compression ratio: 9.5:1] 2000-2001 Nissan Altima [Change hp & Torque] See also List of Nissan engines References KA Straight-four engines Gasoline engines by model