The Mitsubishi Raider, a restyled version of the Dodge Dakota midsize pickup, ended production in 2009. For its final model year, it came only with a V6 engine; Mitsubishi dropped the optional V8 in 2007. The Raider's sole engine was a Chrysler-designed 3.7-liter V6. Known as EKG, this 12-valve, SOHC engine is part of Chrysler's PowerTech family. It is essentially a six-cylinder version of the 4.7-liter V8 used in various Chrysler, Dodge, and Jeep vehicles.
Like the V8, it has a cast-iron block, aluminum cylinder heads, a plastic intake manifold, chain-driven overhead camshafts, and roller-type cam followers. The EKG shares the V8's 90-degree bank angle, rather than the 60-degree angle ideal for a V6 engine. It uses a split-pin crankshaft to give even firing intervals, and a balance shaft to reduce the shaking forces created by the 90-degree layout. The 3.7-liter engine was revised in 2005 with hydraulic valve lash adjusters, a new cam profile for better mid-range torque, and a higher, 9.7:1 compression ratio. In the Raider, it made 210 horsepower and 235 lb-ft of torque.
Like the V8, it has a cast-iron block, aluminum cylinder heads, a plastic intake manifold, chain-driven overhead camshafts, and roller-type cam followers. The EKG shares the V8's 90-degree bank angle, rather than the 60-degree angle ideal for a V6 engine. It uses a split-pin crankshaft to give even firing intervals, and a balance shaft to reduce the shaking forces created by the 90-degree layout. The 3.7-liter engine was revised in 2005 with hydraulic valve lash adjusters, a new cam profile for better mid-range torque, and a higher, 9.7:1 compression ratio. In the Raider, it made 210 horsepower and 235 lb-ft of torque.
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